638548960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:889

約数の個数: 192

約数和(自身を含む): 1866170880

約数和(自身を除く): 1227621920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 37, 38, 40, 56, 70, 74, 76, 80, 95, 112, 133, 140, 148, 152, 160, 185, 190, 224, 259, 266, 280, 296, 304, 370, 380, 518, 532, 560, 592, 608, 665, 703, 740, 760, 811, 1036, 1064, 1120, 1184, 1295, 1330, 1406, 1480, 1520, 1622, 2072, 2128, 2590, 2660, 2812, 2960, 3040, 3244, 3515, 4055, 4144, 4256, 4921, 5180, 5320, 5624, 5677, 5920, 6488, 7030, 8110, 8288, 9842, 10360, 10640, 11248, 11354, 12976, 14060, 15409, 16220, 19684, 20720, 21280, 22496, 22708, 24605, 25952, 28120, 28385, 30007, 30818, 32440, 39368, 41440, 45416, 49210, 56240, 56770, 60014, 61636, 64880, 77045, 78736, 90832, 98420, 107863, 112480, 113540, 120028, 123272, 129760, 150035, 154090, 157472, 181664, 196840, 210049, 215726, 227080, 240056, 246544, 300070, 308180, 393680, 420098, 431452, 454160, 480112, 493088, 539315, 570133, 600140, 616360, 787360, 840196, 862904, 908320, 960224, 1050245, 1078630, 1140266, 1200280, 1232720, 1680392, 1725808, 2100490, 2157260, 2280532, 2400560, 2465440, 2850665, 3360784, 3451616, 3990931, 4200980, 4314520, 4561064, 4801120, 5701330, 6721568, 7981862, 8401960, 8629040, 9122128, 11402660, 15963724, 16803920, 17258080, 18244256, 19954655, 22805320, 31927448, 33607840, 39909310, 45610640, 63854896, 79818620, 91221280, 127709792, 159637240, 319274480, 638548960]

約数ペア:

[(1, 638548960), (2, 319274480), (4, 159637240), (5, 127709792), (7, 91221280), (8, 79818620), (10, 63854896), (14, 45610640), (16, 39909310), (19, 33607840), (20, 31927448), (28, 22805320), (32, 19954655), (35, 18244256), (37, 17258080), (38, 16803920), (40, 15963724), (56, 11402660), (70, 9122128), (74, 8629040), (76, 8401960), (80, 7981862), (95, 6721568), (112, 5701330), (133, 4801120), (140, 4561064), (148, 4314520), (152, 4200980), (160, 3990931), (185, 3451616), (190, 3360784), (224, 2850665), (259, 2465440), (266, 2400560), (280, 2280532), (296, 2157260), (304, 2100490), (370, 1725808), (380, 1680392), (518, 1232720), (532, 1200280), (560, 1140266), (592, 1078630), (608, 1050245), (665, 960224), (703, 908320), (740, 862904), (760, 840196), (811, 787360), (1036, 616360), (1064, 600140), (1120, 570133), (1184, 539315), (1295, 493088), (1330, 480112), (1406, 454160), (1480, 431452), (1520, 420098), (1622, 393680), (2072, 308180), (2128, 300070), (2590, 246544), (2660, 240056), (2812, 227080), (2960, 215726), (3040, 210049), (3244, 196840), (3515, 181664), (4055, 157472), (4144, 154090), (4256, 150035), (4921, 129760), (5180, 123272), (5320, 120028), (5624, 113540), (5677, 112480), (5920, 107863), (6488, 98420), (7030, 90832), (8110, 78736), (8288, 77045), (9842, 64880), (10360, 61636), (10640, 60014), (11248, 56770), (11354, 56240), (12976, 49210), (14060, 45416), (15409, 41440), (16220, 39368), (19684, 32440), (20720, 30818), (21280, 30007), (22496, 28385), (22708, 28120), (24605, 25952)]