688157080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:869

約数の個数: 128

約数和(自身を含む): 1751258880

約数和(自身を除く): 1063101800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 47, 52, 65, 74, 94, 104, 130, 148, 185, 188, 235, 260, 296, 370, 376, 470, 481, 520, 611, 740, 761, 940, 962, 1222, 1480, 1522, 1739, 1880, 1924, 2405, 2444, 3044, 3055, 3478, 3805, 3848, 4810, 4888, 6088, 6110, 6956, 7610, 8695, 9620, 9893, 12220, 13912, 15220, 17390, 19240, 19786, 22607, 24440, 28157, 30440, 34780, 35767, 39572, 45214, 49465, 56314, 69560, 71534, 79144, 90428, 98930, 112628, 113035, 140785, 143068, 178835, 180856, 197860, 225256, 226070, 281570, 286136, 357670, 366041, 395720, 452140, 464971, 563140, 715340, 732082, 904280, 929942, 1126280, 1323379, 1430680, 1464164, 1830205, 1859884, 2324855, 2646758, 2928328, 3660410, 3719768, 4649710, 5293516, 6616895, 7320820, 9299420, 10587032, 13233790, 14641640, 17203927, 18598840, 26467580, 34407854, 52935160, 68815708, 86019635, 137631416, 172039270, 344078540, 688157080]

約数ペア:

[(1, 688157080), (2, 344078540), (4, 172039270), (5, 137631416), (8, 86019635), (10, 68815708), (13, 52935160), (20, 34407854), (26, 26467580), (37, 18598840), (40, 17203927), (47, 14641640), (52, 13233790), (65, 10587032), (74, 9299420), (94, 7320820), (104, 6616895), (130, 5293516), (148, 4649710), (185, 3719768), (188, 3660410), (235, 2928328), (260, 2646758), (296, 2324855), (370, 1859884), (376, 1830205), (470, 1464164), (481, 1430680), (520, 1323379), (611, 1126280), (740, 929942), (761, 904280), (940, 732082), (962, 715340), (1222, 563140), (1480, 464971), (1522, 452140), (1739, 395720), (1880, 366041), (1924, 357670), (2405, 286136), (2444, 281570), (3044, 226070), (3055, 225256), (3478, 197860), (3805, 180856), (3848, 178835), (4810, 143068), (4888, 140785), (6088, 113035), (6110, 112628), (6956, 98930), (7610, 90428), (8695, 79144), (9620, 71534), (9893, 69560), (12220, 56314), (13912, 49465), (15220, 45214), (17390, 39572), (19240, 35767), (19786, 34780), (22607, 30440), (24440, 28157)]