80719600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 180

約数和(自身を含む): 225542856

約数和(自身を除く): 144823256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 25, 26, 38, 40, 43, 50, 52, 65, 76, 80, 86, 95, 100, 104, 130, 152, 172, 190, 200, 208, 215, 247, 260, 304, 325, 344, 361, 380, 400, 430, 475, 494, 520, 559, 650, 688, 722, 760, 817, 860, 950, 988, 1040, 1075, 1118, 1235, 1300, 1444, 1520, 1634, 1720, 1805, 1900, 1976, 2150, 2236, 2470, 2600, 2795, 2888, 3268, 3440, 3610, 3800, 3952, 4085, 4300, 4472, 4693, 4940, 5200, 5590, 5776, 6175, 6536, 7220, 7600, 8170, 8600, 8944, 9025, 9386, 9880, 10621, 11180, 12350, 13072, 13975, 14440, 15523, 16340, 17200, 18050, 18772, 19760, 20425, 21242, 22360, 23465, 24700, 27950, 28880, 31046, 32680, 36100, 37544, 40850, 42484, 44720, 46930, 49400, 53105, 55900, 62092, 65360, 72200, 75088, 77615, 81700, 84968, 93860, 98800, 106210, 111800, 117325, 124184, 144400, 155230, 163400, 169936, 187720, 201799, 212420, 223600, 234650, 248368, 265525, 310460, 326800, 375440, 388075, 403598, 424840, 469300, 531050, 620920, 776150, 807196, 849680, 938600, 1008995, 1062100, 1241840, 1552300, 1614392, 1877200, 2017990, 2124200, 3104600, 3228784, 4035980, 4248400, 5044975, 6209200, 8071960, 10089950, 16143920, 20179900, 40359800, 80719600]

約数ペア:

[(1, 80719600), (2, 40359800), (4, 20179900), (5, 16143920), (8, 10089950), (10, 8071960), (13, 6209200), (16, 5044975), (19, 4248400), (20, 4035980), (25, 3228784), (26, 3104600), (38, 2124200), (40, 2017990), (43, 1877200), (50, 1614392), (52, 1552300), (65, 1241840), (76, 1062100), (80, 1008995), (86, 938600), (95, 849680), (100, 807196), (104, 776150), (130, 620920), (152, 531050), (172, 469300), (190, 424840), (200, 403598), (208, 388075), (215, 375440), (247, 326800), (260, 310460), (304, 265525), (325, 248368), (344, 234650), (361, 223600), (380, 212420), (400, 201799), (430, 187720), (475, 169936), (494, 163400), (520, 155230), (559, 144400), (650, 124184), (688, 117325), (722, 111800), (760, 106210), (817, 98800), (860, 93860), (950, 84968), (988, 81700), (1040, 77615), (1075, 75088), (1118, 72200), (1235, 65360), (1300, 62092), (1444, 55900), (1520, 53105), (1634, 49400), (1720, 46930), (1805, 44720), (1900, 42484), (1976, 40850), (2150, 37544), (2236, 36100), (2470, 32680), (2600, 31046), (2795, 28880), (2888, 27950), (3268, 24700), (3440, 23465), (3610, 22360), (3800, 21242), (3952, 20425), (4085, 19760), (4300, 18772), (4472, 18050), (4693, 17200), (4940, 16340), (5200, 15523), (5590, 14440), (5776, 13975), (6175, 13072), (6536, 12350), (7220, 11180), (7600, 10621), (8170, 9880), (8600, 9386), (8944, 9025)]