65516560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43103}}^1$

素因数の和:43135

約数の個数: 40

約数和(自身を含む): 160346880

約数和(自身を除く): 94830320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 43103, 86206, 172412, 215515, 344824, 431030, 689648, 818957, 862060, 1637914, 1724120, 3275828, 3448240, 4094785, 6551656, 8189570, 13103312, 16379140, 32758280, 65516560]

約数ペア:

[(1, 65516560), (2, 32758280), (4, 16379140), (5, 13103312), (8, 8189570), (10, 6551656), (16, 4094785), (19, 3448240), (20, 3275828), (38, 1724120), (40, 1637914), (76, 862060), (80, 818957), (95, 689648), (152, 431030), (190, 344824), (304, 215515), (380, 172412), (760, 86206), (1520, 43103)]