1277900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{983}}^1$

素因数の和:1010

約数の個数: 36

約数和(自身を含む): 2989392

約数和(自身を除く): 1711492

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 983, 1300, 1966, 3932, 4915, 9830, 12779, 19660, 24575, 25558, 49150, 51116, 63895, 98300, 127790, 255580, 319475, 638950, 1277900]

約数ペア:

[(1, 1277900), (2, 638950), (4, 319475), (5, 255580), (10, 127790), (13, 98300), (20, 63895), (25, 51116), (26, 49150), (50, 25558), (52, 24575), (65, 19660), (100, 12779), (130, 9830), (260, 4915), (325, 3932), (650, 1966), (983, 1300)]