131913680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1237}}^1$

素因数の和:1324

約数の個数: 80

約数和(自身を含む): 324217344

約数和(自身を除く): 192303664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 43, 62, 80, 86, 124, 155, 172, 215, 248, 310, 344, 430, 496, 620, 688, 860, 1237, 1240, 1333, 1720, 2474, 2480, 2666, 3440, 4948, 5332, 6185, 6665, 9896, 10664, 12370, 13330, 19792, 21328, 24740, 26660, 38347, 49480, 53191, 53320, 76694, 98960, 106382, 106640, 153388, 191735, 212764, 265955, 306776, 383470, 425528, 531910, 613552, 766940, 851056, 1063820, 1533880, 1648921, 2127640, 3067760, 3297842, 4255280, 6595684, 8244605, 13191368, 16489210, 26382736, 32978420, 65956840, 131913680]

約数ペア:

[(1, 131913680), (2, 65956840), (4, 32978420), (5, 26382736), (8, 16489210), (10, 13191368), (16, 8244605), (20, 6595684), (31, 4255280), (40, 3297842), (43, 3067760), (62, 2127640), (80, 1648921), (86, 1533880), (124, 1063820), (155, 851056), (172, 766940), (215, 613552), (248, 531910), (310, 425528), (344, 383470), (430, 306776), (496, 265955), (620, 212764), (688, 191735), (860, 153388), (1237, 106640), (1240, 106382), (1333, 98960), (1720, 76694), (2474, 53320), (2480, 53191), (2666, 49480), (3440, 38347), (4948, 26660), (5332, 24740), (6185, 21328), (6665, 19792), (9896, 13330), (10664, 12370)]