68784560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^2$

素因数の和:163

約数の個数: 120

約数和(自身を含む): 184415280

約数和(自身を除く): 115630720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 59, 65, 76, 80, 95, 104, 118, 130, 152, 190, 208, 236, 247, 260, 295, 304, 380, 472, 494, 520, 590, 760, 767, 944, 988, 1040, 1121, 1180, 1235, 1520, 1534, 1976, 2242, 2360, 2470, 3068, 3481, 3835, 3952, 4484, 4720, 4940, 5605, 6136, 6962, 7670, 8968, 9880, 11210, 12272, 13924, 14573, 15340, 17405, 17936, 19760, 22420, 27848, 29146, 30680, 34810, 44840, 45253, 55696, 58292, 61360, 66139, 69620, 72865, 89680, 90506, 116584, 132278, 139240, 145730, 181012, 226265, 233168, 264556, 278480, 291460, 330695, 362024, 452530, 529112, 582920, 661390, 724048, 859807, 905060, 1058224, 1165840, 1322780, 1719614, 1810120, 2645560, 3439228, 3620240, 4299035, 5291120, 6878456, 8598070, 13756912, 17196140, 34392280, 68784560]

約数ペア:

[(1, 68784560), (2, 34392280), (4, 17196140), (5, 13756912), (8, 8598070), (10, 6878456), (13, 5291120), (16, 4299035), (19, 3620240), (20, 3439228), (26, 2645560), (38, 1810120), (40, 1719614), (52, 1322780), (59, 1165840), (65, 1058224), (76, 905060), (80, 859807), (95, 724048), (104, 661390), (118, 582920), (130, 529112), (152, 452530), (190, 362024), (208, 330695), (236, 291460), (247, 278480), (260, 264556), (295, 233168), (304, 226265), (380, 181012), (472, 145730), (494, 139240), (520, 132278), (590, 116584), (760, 90506), (767, 89680), (944, 72865), (988, 69620), (1040, 66139), (1121, 61360), (1180, 58292), (1235, 55696), (1520, 45253), (1534, 44840), (1976, 34810), (2242, 30680), (2360, 29146), (2470, 27848), (3068, 22420), (3481, 19760), (3835, 17936), (3952, 17405), (4484, 15340), (4720, 14573), (4940, 13924), (5605, 12272), (6136, 11210), (6962, 9880), (7670, 8968)]