68702940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1597}}^1$

素因数の和:1851

約数の個数: 72

約数和(自身を含む): 209401920

約数和(自身を除く): 140698980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 717, 956, 1195, 1434, 1597, 2151, 2390, 2868, 3194, 3585, 4302, 4780, 4791, 6388, 7170, 7985, 8604, 9582, 10755, 14340, 14373, 15970, 19164, 21510, 23955, 28746, 31940, 43020, 47910, 57492, 71865, 95820, 143730, 287460, 381683, 763366, 1145049, 1526732, 1908415, 2290098, 3435147, 3816830, 4580196, 5725245, 6870294, 7633660, 11450490, 13740588, 17175735, 22900980, 34351470, 68702940]

約数ペア:

[(1, 68702940), (2, 34351470), (3, 22900980), (4, 17175735), (5, 13740588), (6, 11450490), (9, 7633660), (10, 6870294), (12, 5725245), (15, 4580196), (18, 3816830), (20, 3435147), (30, 2290098), (36, 1908415), (45, 1526732), (60, 1145049), (90, 763366), (180, 381683), (239, 287460), (478, 143730), (717, 95820), (956, 71865), (1195, 57492), (1434, 47910), (1597, 43020), (2151, 31940), (2390, 28746), (2868, 23955), (3194, 21510), (3585, 19164), (4302, 15970), (4780, 14373), (4791, 14340), (6388, 10755), (7170, 9582), (7985, 8604)]