15261920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 39626496

約数和(自身を除く): 24364576

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 155, 160, 170, 181, 248, 272, 310, 340, 362, 496, 527, 544, 620, 680, 724, 905, 992, 1054, 1240, 1360, 1448, 1810, 2108, 2480, 2635, 2720, 2896, 3077, 3620, 4216, 4960, 5270, 5611, 5792, 6154, 7240, 8432, 10540, 11222, 12308, 14480, 15385, 16864, 21080, 22444, 24616, 28055, 28960, 30770, 42160, 44888, 49232, 56110, 61540, 84320, 89776, 95387, 98464, 112220, 123080, 179552, 190774, 224440, 246160, 381548, 448880, 476935, 492320, 763096, 897760, 953870, 1526192, 1907740, 3052384, 3815480, 7630960, 15261920]

約数ペア:

[(1, 15261920), (2, 7630960), (4, 3815480), (5, 3052384), (8, 1907740), (10, 1526192), (16, 953870), (17, 897760), (20, 763096), (31, 492320), (32, 476935), (34, 448880), (40, 381548), (62, 246160), (68, 224440), (80, 190774), (85, 179552), (124, 123080), (136, 112220), (155, 98464), (160, 95387), (170, 89776), (181, 84320), (248, 61540), (272, 56110), (310, 49232), (340, 44888), (362, 42160), (496, 30770), (527, 28960), (544, 28055), (620, 24616), (680, 22444), (724, 21080), (905, 16864), (992, 15385), (1054, 14480), (1240, 12308), (1360, 11222), (1448, 10540), (1810, 8432), (2108, 7240), (2480, 6154), (2635, 5792), (2720, 5611), (2896, 5270), (3077, 4960), (3620, 4216)]