1640657640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:464

約数の個数: 192

約数和(自身を含む): 5224927680

約数和(自身を除く): 3584270040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 41, 60, 62, 82, 93, 120, 123, 124, 155, 164, 186, 205, 246, 248, 310, 328, 347, 372, 410, 465, 492, 615, 620, 694, 744, 820, 930, 961, 984, 1041, 1230, 1240, 1271, 1388, 1640, 1735, 1860, 1922, 2082, 2460, 2542, 2776, 2883, 3470, 3720, 3813, 3844, 4164, 4805, 4920, 5084, 5205, 5766, 6355, 6940, 7626, 7688, 8328, 9610, 10168, 10410, 10757, 11532, 12710, 13880, 14227, 14415, 15252, 19065, 19220, 20820, 21514, 23064, 25420, 28454, 28830, 30504, 32271, 38130, 38440, 39401, 41640, 42681, 43028, 50840, 53785, 56908, 57660, 64542, 71135, 76260, 78802, 85362, 86056, 107570, 113816, 115320, 118203, 129084, 142270, 152520, 157604, 161355, 170724, 197005, 213405, 215140, 236406, 258168, 284540, 315208, 322710, 333467, 341448, 394010, 426810, 430280, 441037, 472812, 569080, 591015, 645420, 666934, 788020, 853620, 882074, 945624, 1000401, 1182030, 1290840, 1323111, 1333868, 1576040, 1667335, 1707240, 1764148, 2000802, 2205185, 2364060, 2646222, 2667736, 3334670, 3528296, 4001604, 4410370, 4728120, 5002005, 5292444, 6615555, 6669340, 8003208, 8820740, 10004010, 10584888, 13231110, 13338680, 13672147, 17641480, 20008020, 26462220, 27344294, 40016040, 41016441, 52924440, 54688588, 68360735, 82032882, 109377176, 136721470, 164065764, 205082205, 273442940, 328131528, 410164410, 546885880, 820328820, 1640657640]

約数ペア:

[(1, 1640657640), (2, 820328820), (3, 546885880), (4, 410164410), (5, 328131528), (6, 273442940), (8, 205082205), (10, 164065764), (12, 136721470), (15, 109377176), (20, 82032882), (24, 68360735), (30, 54688588), (31, 52924440), (40, 41016441), (41, 40016040), (60, 27344294), (62, 26462220), (82, 20008020), (93, 17641480), (120, 13672147), (123, 13338680), (124, 13231110), (155, 10584888), (164, 10004010), (186, 8820740), (205, 8003208), (246, 6669340), (248, 6615555), (310, 5292444), (328, 5002005), (347, 4728120), (372, 4410370), (410, 4001604), (465, 3528296), (492, 3334670), (615, 2667736), (620, 2646222), (694, 2364060), (744, 2205185), (820, 2000802), (930, 1764148), (961, 1707240), (984, 1667335), (1041, 1576040), (1230, 1333868), (1240, 1323111), (1271, 1290840), (1388, 1182030), (1640, 1000401), (1735, 945624), (1860, 882074), (1922, 853620), (2082, 788020), (2460, 666934), (2542, 645420), (2776, 591015), (2883, 569080), (3470, 472812), (3720, 441037), (3813, 430280), (3844, 426810), (4164, 394010), (4805, 341448), (4920, 333467), (5084, 322710), (5205, 315208), (5766, 284540), (6355, 258168), (6940, 236406), (7626, 215140), (7688, 213405), (8328, 197005), (9610, 170724), (10168, 161355), (10410, 157604), (10757, 152520), (11532, 142270), (12710, 129084), (13880, 118203), (14227, 115320), (14415, 113816), (15252, 107570), (19065, 86056), (19220, 85362), (20820, 78802), (21514, 76260), (23064, 71135), (25420, 64542), (28454, 57660), (28830, 56908), (30504, 53785), (32271, 50840), (38130, 43028), (38440, 42681), (39401, 41640)]