1381420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{239}}^1$

素因数の和:282

約数の個数: 36

約数和(自身を含む): 3094560

約数和(自身を除く): 1713140

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 289, 340, 478, 578, 956, 1156, 1195, 1445, 2390, 2890, 4063, 4780, 5780, 8126, 16252, 20315, 40630, 69071, 81260, 138142, 276284, 345355, 690710, 1381420]

約数ペア:

[(1, 1381420), (2, 690710), (4, 345355), (5, 276284), (10, 138142), (17, 81260), (20, 69071), (34, 40630), (68, 20315), (85, 16252), (170, 8126), (239, 5780), (289, 4780), (340, 4063), (478, 2890), (578, 2390), (956, 1445), (1156, 1195)]