17865640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 47900160

約数和(自身を除く): 30034520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 43, 47, 52, 65, 68, 85, 86, 94, 104, 130, 136, 170, 172, 188, 215, 221, 235, 260, 340, 344, 376, 430, 442, 470, 520, 559, 611, 680, 731, 799, 860, 884, 940, 1105, 1118, 1222, 1462, 1598, 1720, 1768, 1880, 2021, 2210, 2236, 2444, 2795, 2924, 3055, 3196, 3655, 3995, 4042, 4420, 4472, 4888, 5590, 5848, 6110, 6392, 7310, 7990, 8084, 8840, 9503, 10105, 10387, 11180, 12220, 14620, 15980, 16168, 19006, 20210, 20774, 22360, 24440, 26273, 29240, 31960, 34357, 38012, 40420, 41548, 47515, 51935, 52546, 68714, 76024, 80840, 83096, 95030, 103870, 105092, 131365, 137428, 171785, 190060, 207740, 210184, 262730, 274856, 343570, 380120, 415480, 446641, 525460, 687140, 893282, 1050920, 1374280, 1786564, 2233205, 3573128, 4466410, 8932820, 17865640]

約数ペア:

[(1, 17865640), (2, 8932820), (4, 4466410), (5, 3573128), (8, 2233205), (10, 1786564), (13, 1374280), (17, 1050920), (20, 893282), (26, 687140), (34, 525460), (40, 446641), (43, 415480), (47, 380120), (52, 343570), (65, 274856), (68, 262730), (85, 210184), (86, 207740), (94, 190060), (104, 171785), (130, 137428), (136, 131365), (170, 105092), (172, 103870), (188, 95030), (215, 83096), (221, 80840), (235, 76024), (260, 68714), (340, 52546), (344, 51935), (376, 47515), (430, 41548), (442, 40420), (470, 38012), (520, 34357), (559, 31960), (611, 29240), (680, 26273), (731, 24440), (799, 22360), (860, 20774), (884, 20210), (940, 19006), (1105, 16168), (1118, 15980), (1222, 14620), (1462, 12220), (1598, 11180), (1720, 10387), (1768, 10105), (1880, 9503), (2021, 8840), (2210, 8084), (2236, 7990), (2444, 7310), (2795, 6392), (2924, 6110), (3055, 5848), (3196, 5590), (3655, 4888), (3995, 4472), (4042, 4420)]