640239404700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{332471}}^1$

素因数の和:332633

約数の個数: 216

約数和(自身を含む): 2171318776704

約数和(自身を除く): 1531079372004

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 131, 140, 147, 150, 175, 196, 210, 245, 262, 294, 300, 350, 393, 420, 490, 524, 525, 588, 655, 700, 735, 786, 917, 980, 1050, 1225, 1310, 1470, 1572, 1834, 1965, 2100, 2450, 2620, 2751, 2940, 3275, 3668, 3675, 3930, 4585, 4900, 5502, 6419, 6550, 7350, 7860, 9170, 9825, 11004, 12838, 13100, 13755, 14700, 18340, 19257, 19650, 22925, 25676, 27510, 32095, 38514, 39300, 45850, 55020, 64190, 68775, 77028, 91700, 96285, 128380, 137550, 160475, 192570, 275100, 320950, 332471, 385140, 481425, 641900, 664942, 962850, 997413, 1329884, 1662355, 1925700, 1994826, 2327297, 3324710, 3989652, 4654594, 4987065, 6649420, 6981891, 8311775, 9309188, 9974130, 11636485, 13963782, 16291079, 16623550, 19948260, 23272970, 24935325, 27927564, 32582158, 33247100, 34909455, 43553701, 46545940, 48873237, 49870650, 58182425, 65164316, 69818910, 81455395, 87107402, 97746474, 99741300, 116364850, 130661103, 139637820, 162910790, 174214804, 174547275, 195492948, 217768505, 232729700, 244366185, 261322206, 304875907, 325821580, 349094550, 407276975, 435537010, 488732370, 522644412, 609751814, 653305515, 698189100, 814553950, 871074020, 914627721, 977464740, 1088842525, 1219503628, 1221830925, 1306611030, 1524379535, 1629107900, 1829255442, 2134131349, 2177685050, 2443661850, 2613222060, 3048759070, 3266527575, 3658510884, 4268262698, 4355370100, 4573138605, 4887323700, 6097518140, 6402394047, 6533055150, 7621897675, 8536525396, 9146277210, 10670656745, 12804788094, 13066110300, 15243795350, 18292554420, 21341313490, 22865693025, 25609576188, 30487590700, 32011970235, 42682626980, 45731386050, 53353283725, 64023940470, 91462772100, 106706567450, 128047880940, 160059851175, 213413134900, 320119702350, 640239404700]

約数ペア:

[(1, 640239404700), (2, 320119702350), (3, 213413134900), (4, 160059851175), (5, 128047880940), (6, 106706567450), (7, 91462772100), (10, 64023940470), (12, 53353283725), (14, 45731386050), (15, 42682626980), (20, 32011970235), (21, 30487590700), (25, 25609576188), (28, 22865693025), (30, 21341313490), (35, 18292554420), (42, 15243795350), (49, 13066110300), (50, 12804788094), (60, 10670656745), (70, 9146277210), (75, 8536525396), (84, 7621897675), (98, 6533055150), (100, 6402394047), (105, 6097518140), (131, 4887323700), (140, 4573138605), (147, 4355370100), (150, 4268262698), (175, 3658510884), (196, 3266527575), (210, 3048759070), (245, 2613222060), (262, 2443661850), (294, 2177685050), (300, 2134131349), (350, 1829255442), (393, 1629107900), (420, 1524379535), (490, 1306611030), (524, 1221830925), (525, 1219503628), (588, 1088842525), (655, 977464740), (700, 914627721), (735, 871074020), (786, 814553950), (917, 698189100), (980, 653305515), (1050, 609751814), (1225, 522644412), (1310, 488732370), (1470, 435537010), (1572, 407276975), (1834, 349094550), (1965, 325821580), (2100, 304875907), (2450, 261322206), (2620, 244366185), (2751, 232729700), (2940, 217768505), (3275, 195492948), (3668, 174547275), (3675, 174214804), (3930, 162910790), (4585, 139637820), (4900, 130661103), (5502, 116364850), (6419, 99741300), (6550, 97746474), (7350, 87107402), (7860, 81455395), (9170, 69818910), (9825, 65164316), (11004, 58182425), (12838, 49870650), (13100, 48873237), (13755, 46545940), (14700, 43553701), (18340, 34909455), (19257, 33247100), (19650, 32582158), (22925, 27927564), (25676, 24935325), (27510, 23272970), (32095, 19948260), (38514, 16623550), (39300, 16291079), (45850, 13963782), (55020, 11636485), (64190, 9974130), (68775, 9309188), (77028, 8311775), (91700, 6981891), (96285, 6649420), (128380, 4987065), (137550, 4654594), (160475, 3989652), (192570, 3324710), (275100, 2327297), (320950, 1994826), (332471, 1925700), (385140, 1662355), (481425, 1329884), (641900, 997413), (664942, 962850)]