17958460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{239}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 43323840

約数和(自身を除く): 25365380

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 239, 260, 289, 340, 442, 478, 578, 884, 956, 1105, 1156, 1195, 1445, 2210, 2390, 2890, 3107, 3757, 4063, 4420, 4780, 5780, 6214, 7514, 8126, 12428, 15028, 15535, 16252, 18785, 20315, 31070, 37570, 40630, 52819, 62140, 69071, 75140, 81260, 105638, 138142, 211276, 264095, 276284, 345355, 528190, 690710, 897923, 1056380, 1381420, 1795846, 3591692, 4489615, 8979230, 17958460]

約数ペア:

[(1, 17958460), (2, 8979230), (4, 4489615), (5, 3591692), (10, 1795846), (13, 1381420), (17, 1056380), (20, 897923), (26, 690710), (34, 528190), (52, 345355), (65, 276284), (68, 264095), (85, 211276), (130, 138142), (170, 105638), (221, 81260), (239, 75140), (260, 69071), (289, 62140), (340, 52819), (442, 40630), (478, 37570), (578, 31070), (884, 20315), (956, 18785), (1105, 16252), (1156, 15535), (1195, 15028), (1445, 12428), (2210, 8126), (2390, 7514), (2890, 6214), (3107, 5780), (3757, 4780), (4063, 4420)]