77687480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149399}}^1$

素因数の和:149423

約数の個数: 32

約数和(自身を含む): 188244000

約数和(自身を除く): 110556520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 149399, 298798, 597596, 746995, 1195192, 1493990, 1942187, 2987980, 3884374, 5975960, 7768748, 9710935, 15537496, 19421870, 38843740, 77687480]

約数ペア:

[(1, 77687480), (2, 38843740), (4, 19421870), (5, 15537496), (8, 9710935), (10, 7768748), (13, 5975960), (20, 3884374), (26, 2987980), (40, 1942187), (52, 1493990), (65, 1195192), (104, 746995), (130, 597596), (260, 298798), (520, 149399)]