131901640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:431

約数の個数: 128

約数和(自身を含む): 347276160

約数和(自身を除く): 215374520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 43, 52, 65, 68, 85, 86, 104, 130, 136, 170, 172, 215, 221, 260, 340, 344, 347, 430, 442, 520, 559, 680, 694, 731, 860, 884, 1105, 1118, 1388, 1462, 1720, 1735, 1768, 2210, 2236, 2776, 2795, 2924, 3470, 3655, 4420, 4472, 4511, 5590, 5848, 5899, 6940, 7310, 8840, 9022, 9503, 11180, 11798, 13880, 14620, 14921, 18044, 19006, 22360, 22555, 23596, 29240, 29495, 29842, 36088, 38012, 45110, 47192, 47515, 58990, 59684, 74605, 76024, 76687, 90220, 95030, 117980, 119368, 149210, 153374, 180440, 190060, 193973, 235960, 253657, 298420, 306748, 380120, 383435, 387946, 507314, 596840, 613496, 766870, 775892, 969865, 1014628, 1268285, 1533740, 1551784, 1939730, 2029256, 2536570, 3067480, 3297541, 3879460, 5073140, 6595082, 7758920, 10146280, 13190164, 16487705, 26380328, 32975410, 65950820, 131901640]

約数ペア:

[(1, 131901640), (2, 65950820), (4, 32975410), (5, 26380328), (8, 16487705), (10, 13190164), (13, 10146280), (17, 7758920), (20, 6595082), (26, 5073140), (34, 3879460), (40, 3297541), (43, 3067480), (52, 2536570), (65, 2029256), (68, 1939730), (85, 1551784), (86, 1533740), (104, 1268285), (130, 1014628), (136, 969865), (170, 775892), (172, 766870), (215, 613496), (221, 596840), (260, 507314), (340, 387946), (344, 383435), (347, 380120), (430, 306748), (442, 298420), (520, 253657), (559, 235960), (680, 193973), (694, 190060), (731, 180440), (860, 153374), (884, 149210), (1105, 119368), (1118, 117980), (1388, 95030), (1462, 90220), (1720, 76687), (1735, 76024), (1768, 74605), (2210, 59684), (2236, 58990), (2776, 47515), (2795, 47192), (2924, 45110), (3470, 38012), (3655, 36088), (4420, 29842), (4472, 29495), (4511, 29240), (5590, 23596), (5848, 22555), (5899, 22360), (6940, 19006), (7310, 18044), (8840, 14921), (9022, 14620), (9503, 13880), (11180, 11798)]