40520220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51949}}^1$

素因数の和:51974

約数の個数: 48

約数和(自身を含む): 122186400

約数和(自身を除く): 81666180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 51949, 103898, 155847, 207796, 259745, 311694, 519490, 623388, 675337, 779235, 1038980, 1350674, 1558470, 2026011, 2701348, 3116940, 3376685, 4052022, 6753370, 8104044, 10130055, 13506740, 20260110, 40520220]

約数ペア:

[(1, 40520220), (2, 20260110), (3, 13506740), (4, 10130055), (5, 8104044), (6, 6753370), (10, 4052022), (12, 3376685), (13, 3116940), (15, 2701348), (20, 2026011), (26, 1558470), (30, 1350674), (39, 1038980), (52, 779235), (60, 675337), (65, 623388), (78, 519490), (130, 311694), (156, 259745), (195, 207796), (260, 155847), (390, 103898), (780, 51949)]