71139920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^2\times {\mathrm{41}}^2$

素因数の和:141

約数の個数: 90

約数和(自身を含む): 177224334

約数和(自身を除く): 106084414

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 41, 46, 80, 82, 92, 115, 164, 184, 205, 230, 328, 368, 410, 460, 529, 656, 820, 920, 943, 1058, 1640, 1681, 1840, 1886, 2116, 2645, 3280, 3362, 3772, 4232, 4715, 5290, 6724, 7544, 8405, 8464, 9430, 10580, 13448, 15088, 16810, 18860, 21160, 21689, 26896, 33620, 37720, 38663, 42320, 43378, 67240, 75440, 77326, 86756, 108445, 134480, 154652, 173512, 193315, 216890, 309304, 347024, 386630, 433780, 618608, 773260, 867560, 889249, 1546520, 1735120, 1778498, 3093040, 3556996, 4446245, 7113992, 8892490, 14227984, 17784980, 35569960, 71139920]

約数ペア:

[(1, 71139920), (2, 35569960), (4, 17784980), (5, 14227984), (8, 8892490), (10, 7113992), (16, 4446245), (20, 3556996), (23, 3093040), (40, 1778498), (41, 1735120), (46, 1546520), (80, 889249), (82, 867560), (92, 773260), (115, 618608), (164, 433780), (184, 386630), (205, 347024), (230, 309304), (328, 216890), (368, 193315), (410, 173512), (460, 154652), (529, 134480), (656, 108445), (820, 86756), (920, 77326), (943, 75440), (1058, 67240), (1640, 43378), (1681, 42320), (1840, 38663), (1886, 37720), (2116, 33620), (2645, 26896), (3280, 21689), (3362, 21160), (3772, 18860), (4232, 16810), (4715, 15088), (5290, 13448), (6724, 10580), (7544, 9430), (8405, 8464)]