639611220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{991}}^1$

素因数の和:1381

約数の個数: 96

約数和(自身を含む): 1855881216

約数和(自身を除く): 1216269996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 347, 372, 465, 620, 694, 930, 991, 1041, 1388, 1735, 1860, 1982, 2082, 2973, 3470, 3964, 4164, 4955, 5205, 5946, 6940, 9910, 10410, 10757, 11892, 14865, 19820, 20820, 21514, 29730, 30721, 32271, 43028, 53785, 59460, 61442, 64542, 92163, 107570, 122884, 129084, 153605, 161355, 184326, 215140, 307210, 322710, 343877, 368652, 460815, 614420, 645420, 687754, 921630, 1031631, 1375508, 1719385, 1843260, 2063262, 3438770, 4126524, 5158155, 6877540, 10316310, 10660187, 20632620, 21320374, 31980561, 42640748, 53300935, 63961122, 106601870, 127922244, 159902805, 213203740, 319805610, 639611220]

約数ペア:

[(1, 639611220), (2, 319805610), (3, 213203740), (4, 159902805), (5, 127922244), (6, 106601870), (10, 63961122), (12, 53300935), (15, 42640748), (20, 31980561), (30, 21320374), (31, 20632620), (60, 10660187), (62, 10316310), (93, 6877540), (124, 5158155), (155, 4126524), (186, 3438770), (310, 2063262), (347, 1843260), (372, 1719385), (465, 1375508), (620, 1031631), (694, 921630), (930, 687754), (991, 645420), (1041, 614420), (1388, 460815), (1735, 368652), (1860, 343877), (1982, 322710), (2082, 307210), (2973, 215140), (3470, 184326), (3964, 161355), (4164, 153605), (4955, 129084), (5205, 122884), (5946, 107570), (6940, 92163), (9910, 64542), (10410, 61442), (10757, 59460), (11892, 53785), (14865, 43028), (19820, 32271), (20820, 30721), (21514, 29730)]