20495909520

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{166471}}^1$

素因数の和:166515

約数の個数: 200

約数和(自身を含む): 74932376640

約数和(自身を除く): 54436467120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 270, 285, 304, 324, 342, 360, 380, 405, 432, 456, 513, 540, 570, 648, 684, 720, 760, 810, 855, 912, 1026, 1080, 1140, 1296, 1368, 1520, 1539, 1620, 1710, 2052, 2160, 2280, 2565, 2736, 3078, 3240, 3420, 4104, 4560, 5130, 6156, 6480, 6840, 7695, 8208, 10260, 12312, 13680, 15390, 20520, 24624, 30780, 41040, 61560, 123120, 166471, 332942, 499413, 665884, 832355, 998826, 1331768, 1498239, 1664710, 1997652, 2497065, 2663536, 2996478, 3162949, 3329420, 3995304, 4494717, 4994130, 5992956, 6325898, 6658840, 7491195, 7990608, 8989434, 9488847, 9988260, 11985912, 12651796, 13317680, 13484151, 14982390, 15814745, 17978868, 18977694, 19976520, 22473585, 23971824, 25303592, 26968302, 28466541, 29964780, 31629490, 35957736, 37955388, 39953040, 44947170, 47444235, 50607184, 53936604, 56933082, 59929560, 63258980, 67420755, 71915472, 75910776, 85399623, 89894340, 94888470, 107873208, 113866164, 119859120, 126517960, 134841510, 142332705, 151821552, 170799246, 179788680, 189776940, 215746416, 227732328, 253035920, 256198869, 269683020, 284665410, 341598492, 359577360, 379553880, 426998115, 455464656, 512397738, 539366040, 569330820, 683196984, 759107760, 853996230, 1024795476, 1078732080, 1138661640, 1280994345, 1366393968, 1707992460, 2049590952, 2277323280, 2561988690, 3415984920, 4099181904, 5123977380, 6831969840, 10247954760, 20495909520]

約数ペア:

[(1, 20495909520), (2, 10247954760), (3, 6831969840), (4, 5123977380), (5, 4099181904), (6, 3415984920), (8, 2561988690), (9, 2277323280), (10, 2049590952), (12, 1707992460), (15, 1366393968), (16, 1280994345), (18, 1138661640), (19, 1078732080), (20, 1024795476), (24, 853996230), (27, 759107760), (30, 683196984), (36, 569330820), (38, 539366040), (40, 512397738), (45, 455464656), (48, 426998115), (54, 379553880), (57, 359577360), (60, 341598492), (72, 284665410), (76, 269683020), (80, 256198869), (81, 253035920), (90, 227732328), (95, 215746416), (108, 189776940), (114, 179788680), (120, 170799246), (135, 151821552), (144, 142332705), (152, 134841510), (162, 126517960), (171, 119859120), (180, 113866164), (190, 107873208), (216, 94888470), (228, 89894340), (240, 85399623), (270, 75910776), (285, 71915472), (304, 67420755), (324, 63258980), (342, 59929560), (360, 56933082), (380, 53936604), (405, 50607184), (432, 47444235), (456, 44947170), (513, 39953040), (540, 37955388), (570, 35957736), (648, 31629490), (684, 29964780), (720, 28466541), (760, 26968302), (810, 25303592), (855, 23971824), (912, 22473585), (1026, 19976520), (1080, 18977694), (1140, 17978868), (1296, 15814745), (1368, 14982390), (1520, 13484151), (1539, 13317680), (1620, 12651796), (1710, 11985912), (2052, 9988260), (2160, 9488847), (2280, 8989434), (2565, 7990608), (2736, 7491195), (3078, 6658840), (3240, 6325898), (3420, 5992956), (4104, 4994130), (4560, 4494717), (5130, 3995304), (6156, 3329420), (6480, 3162949), (6840, 2996478), (7695, 2663536), (8208, 2497065), (10260, 1997652), (12312, 1664710), (13680, 1498239), (15390, 1331768), (20520, 998826), (24624, 832355), (30780, 665884), (41040, 499413), (61560, 332942), (123120, 166471)]