127409960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{77689}}^1$

素因数の和:77741

約数の個数: 32

約数和(自身を含む): 293668200

約数和(自身を除く): 166258240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 77689, 155378, 310756, 388445, 621512, 776890, 1553780, 3107560, 3185249, 6370498, 12740996, 15926245, 25481992, 31852490, 63704980, 127409960]

約数ペア:

[(1, 127409960), (2, 63704980), (4, 31852490), (5, 25481992), (8, 15926245), (10, 12740996), (20, 6370498), (40, 3185249), (41, 3107560), (82, 1553780), (164, 776890), (205, 621512), (328, 388445), (410, 310756), (820, 155378), (1640, 77689)]