31230680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 128

約数和(自身を含む): 83160000

約数和(自身を除く): 51929320

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 29, 38, 40, 52, 58, 65, 76, 95, 104, 109, 116, 130, 145, 152, 190, 218, 232, 247, 260, 290, 377, 380, 436, 494, 520, 545, 551, 580, 754, 760, 872, 988, 1090, 1102, 1160, 1235, 1417, 1508, 1885, 1976, 2071, 2180, 2204, 2470, 2755, 2834, 3016, 3161, 3770, 4142, 4360, 4408, 4940, 5510, 5668, 6322, 7085, 7163, 7540, 8284, 9880, 10355, 11020, 11336, 12644, 14170, 14326, 15080, 15805, 16568, 20710, 22040, 25288, 26923, 28340, 28652, 31610, 35815, 41093, 41420, 53846, 56680, 57304, 60059, 63220, 71630, 82186, 82840, 107692, 120118, 126440, 134615, 143260, 164372, 205465, 215384, 240236, 269230, 286520, 300295, 328744, 410930, 480472, 538460, 600590, 780767, 821860, 1076920, 1201180, 1561534, 1643720, 2402360, 3123068, 3903835, 6246136, 7807670, 15615340, 31230680]

約数ペア:

[(1, 31230680), (2, 15615340), (4, 7807670), (5, 6246136), (8, 3903835), (10, 3123068), (13, 2402360), (19, 1643720), (20, 1561534), (26, 1201180), (29, 1076920), (38, 821860), (40, 780767), (52, 600590), (58, 538460), (65, 480472), (76, 410930), (95, 328744), (104, 300295), (109, 286520), (116, 269230), (130, 240236), (145, 215384), (152, 205465), (190, 164372), (218, 143260), (232, 134615), (247, 126440), (260, 120118), (290, 107692), (377, 82840), (380, 82186), (436, 71630), (494, 63220), (520, 60059), (545, 57304), (551, 56680), (580, 53846), (754, 41420), (760, 41093), (872, 35815), (988, 31610), (1090, 28652), (1102, 28340), (1160, 26923), (1235, 25288), (1417, 22040), (1508, 20710), (1885, 16568), (1976, 15805), (2071, 15080), (2180, 14326), (2204, 14170), (2470, 12644), (2755, 11336), (2834, 11020), (3016, 10355), (3161, 9880), (3770, 8284), (4142, 7540), (4360, 7163), (4408, 7085), (4940, 6322), (5510, 5668)]