128698925

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 173590080

約数和(自身を除く): 44891155

約数列:

[1, 5, 17, 25, 47, 85, 235, 289, 379, 425, 799, 1175, 1445, 1895, 3995, 6443, 7225, 9475, 13583, 17813, 19975, 32215, 67915, 89065, 109531, 161075, 302821, 339575, 445325, 547655, 1514105, 2738275, 5147957, 7570525, 25739785, 128698925]

約数ペア:

[(1, 128698925), (5, 25739785), (17, 7570525), (25, 5147957), (47, 2738275), (85, 1514105), (235, 547655), (289, 445325), (379, 339575), (425, 302821), (799, 161075), (1175, 109531), (1445, 89065), (1895, 67915), (3995, 32215), (6443, 19975), (7225, 17813), (9475, 13583)]