1808560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:110

約数の個数: 80

約数和(自身を含む): 4749696

約数和(自身を除く): 2941136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 47, 52, 65, 74, 80, 94, 104, 130, 148, 185, 188, 208, 235, 260, 296, 370, 376, 470, 481, 520, 592, 611, 740, 752, 940, 962, 1040, 1222, 1480, 1739, 1880, 1924, 2405, 2444, 2960, 3055, 3478, 3760, 3848, 4810, 4888, 6110, 6956, 7696, 8695, 9620, 9776, 12220, 13912, 17390, 19240, 22607, 24440, 27824, 34780, 38480, 45214, 48880, 69560, 90428, 113035, 139120, 180856, 226070, 361712, 452140, 904280, 1808560]

約数ペア:

[(1, 1808560), (2, 904280), (4, 452140), (5, 361712), (8, 226070), (10, 180856), (13, 139120), (16, 113035), (20, 90428), (26, 69560), (37, 48880), (40, 45214), (47, 38480), (52, 34780), (65, 27824), (74, 24440), (80, 22607), (94, 19240), (104, 17390), (130, 13912), (148, 12220), (185, 9776), (188, 9620), (208, 8695), (235, 7696), (260, 6956), (296, 6110), (370, 4888), (376, 4810), (470, 3848), (481, 3760), (520, 3478), (592, 3055), (611, 2960), (740, 2444), (752, 2405), (940, 1924), (962, 1880), (1040, 1739), (1222, 1480)]