257863440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{293}}^1$

素因数の和:521

約数の個数: 160

約数和(自身を含む): 848695680

約数和(自身を除く): 590832240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 193, 228, 240, 285, 293, 304, 380, 386, 456, 570, 579, 586, 760, 772, 879, 912, 965, 1140, 1158, 1172, 1465, 1520, 1544, 1758, 1930, 2280, 2316, 2344, 2895, 2930, 3088, 3516, 3667, 3860, 4395, 4560, 4632, 4688, 5567, 5790, 5860, 7032, 7334, 7720, 8790, 9264, 11001, 11134, 11580, 11720, 14064, 14668, 15440, 16701, 17580, 18335, 22002, 22268, 23160, 23440, 27835, 29336, 33402, 35160, 36670, 44004, 44536, 46320, 55005, 55670, 56549, 58672, 66804, 70320, 73340, 83505, 88008, 89072, 110010, 111340, 113098, 133608, 146680, 167010, 169647, 176016, 220020, 222680, 226196, 267216, 282745, 293360, 334020, 339294, 440040, 445360, 452392, 565490, 668040, 678588, 848235, 880080, 904784, 1074431, 1130980, 1336080, 1357176, 1696470, 2148862, 2261960, 2714352, 3223293, 3392940, 4297724, 4523920, 5372155, 6446586, 6785880, 8595448, 10744310, 12893172, 13571760, 16116465, 17190896, 21488620, 25786344, 32232930, 42977240, 51572688, 64465860, 85954480, 128931720, 257863440]

約数ペア:

[(1, 257863440), (2, 128931720), (3, 85954480), (4, 64465860), (5, 51572688), (6, 42977240), (8, 32232930), (10, 25786344), (12, 21488620), (15, 17190896), (16, 16116465), (19, 13571760), (20, 12893172), (24, 10744310), (30, 8595448), (38, 6785880), (40, 6446586), (48, 5372155), (57, 4523920), (60, 4297724), (76, 3392940), (80, 3223293), (95, 2714352), (114, 2261960), (120, 2148862), (152, 1696470), (190, 1357176), (193, 1336080), (228, 1130980), (240, 1074431), (285, 904784), (293, 880080), (304, 848235), (380, 678588), (386, 668040), (456, 565490), (570, 452392), (579, 445360), (586, 440040), (760, 339294), (772, 334020), (879, 293360), (912, 282745), (965, 267216), (1140, 226196), (1158, 222680), (1172, 220020), (1465, 176016), (1520, 169647), (1544, 167010), (1758, 146680), (1930, 133608), (2280, 113098), (2316, 111340), (2344, 110010), (2895, 89072), (2930, 88008), (3088, 83505), (3516, 73340), (3667, 70320), (3860, 66804), (4395, 58672), (4560, 56549), (4632, 55670), (4688, 55005), (5567, 46320), (5790, 44536), (5860, 44004), (7032, 36670), (7334, 35160), (7720, 33402), (8790, 29336), (9264, 27835), (11001, 23440), (11134, 23160), (11580, 22268), (11720, 22002), (14064, 18335), (14668, 17580), (15440, 16701)]