81430560

素因数分解:

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

素因数の和:507

約数の個数: 144

約数和(自身を含む): 280274904

約数和(自身を除く): 198844344

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 193, 240, 288, 293, 360, 386, 480, 579, 586, 720, 772, 879, 965, 1158, 1172, 1440, 1465, 1544, 1737, 1758, 1930, 2316, 2344, 2637, 2895, 2930, 3088, 3474, 3516, 3860, 4395, 4632, 4688, 5274, 5790, 5860, 6176, 6948, 7032, 7720, 8685, 8790, 9264, 9376, 10548, 11580, 11720, 13185, 13896, 14064, 15440, 17370, 17580, 18528, 21096, 23160, 23440, 26370, 27792, 28128, 30880, 34740, 35160, 42192, 46320, 46880, 52740, 55584, 56549, 69480, 70320, 84384, 92640, 105480, 113098, 138960, 140640, 169647, 210960, 226196, 277920, 282745, 339294, 421920, 452392, 508941, 565490, 678588, 848235, 904784, 1017882, 1130980, 1357176, 1696470, 1809568, 2035764, 2261960, 2544705, 2714352, 3392940, 4071528, 4523920, 5089410, 5428704, 6785880, 8143056, 9047840, 10178820, 13571760, 16286112, 20357640, 27143520, 40715280, 81430560]

約数ペア:

[(1, 81430560), (2, 40715280), (3, 27143520), (4, 20357640), (5, 16286112), (6, 13571760), (8, 10178820), (9, 9047840), (10, 8143056), (12, 6785880), (15, 5428704), (16, 5089410), (18, 4523920), (20, 4071528), (24, 3392940), (30, 2714352), (32, 2544705), (36, 2261960), (40, 2035764), (45, 1809568), (48, 1696470), (60, 1357176), (72, 1130980), (80, 1017882), (90, 904784), (96, 848235), (120, 678588), (144, 565490), (160, 508941), (180, 452392), (193, 421920), (240, 339294), (288, 282745), (293, 277920), (360, 226196), (386, 210960), (480, 169647), (579, 140640), (586, 138960), (720, 113098), (772, 105480), (879, 92640), (965, 84384), (1158, 70320), (1172, 69480), (1440, 56549), (1465, 55584), (1544, 52740), (1737, 46880), (1758, 46320), (1930, 42192), (2316, 35160), (2344, 34740), (2637, 30880), (2895, 28128), (2930, 27792), (3088, 26370), (3474, 23440), (3516, 23160), (3860, 21096), (4395, 18528), (4632, 17580), (4688, 17370), (5274, 15440), (5790, 14064), (5860, 13896), (6176, 13185), (6948, 11720), (7032, 11580), (7720, 10548), (8685, 9376), (8790, 9264)]