128568780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23041}}^1$

素因数の和:23087

約数の個数: 72

約数和(自身を含む): 402589824

約数和(自身を除く): 274021044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 23041, 46082, 69123, 92164, 115205, 138246, 207369, 230410, 276492, 345615, 414738, 460820, 691230, 714271, 829476, 1036845, 1382460, 1428542, 2073690, 2142813, 2857084, 3571355, 4147380, 4285626, 6428439, 7142710, 8571252, 10714065, 12856878, 14285420, 21428130, 25713756, 32142195, 42856260, 64284390, 128568780]

約数ペア:

[(1, 128568780), (2, 64284390), (3, 42856260), (4, 32142195), (5, 25713756), (6, 21428130), (9, 14285420), (10, 12856878), (12, 10714065), (15, 8571252), (18, 7142710), (20, 6428439), (30, 4285626), (31, 4147380), (36, 3571355), (45, 2857084), (60, 2142813), (62, 2073690), (90, 1428542), (93, 1382460), (124, 1036845), (155, 829476), (180, 714271), (186, 691230), (279, 460820), (310, 414738), (372, 345615), (465, 276492), (558, 230410), (620, 207369), (930, 138246), (1116, 115205), (1395, 92164), (1860, 69123), (2790, 46082), (5580, 23041)]