25503280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 65736864

約数和(自身を除く): 40233584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 397, 440, 584, 730, 794, 803, 880, 1168, 1460, 1588, 1606, 1985, 2920, 3176, 3212, 3970, 4015, 4367, 5840, 6352, 6424, 7940, 8030, 8734, 12848, 15880, 16060, 17468, 21835, 28981, 31760, 32120, 34936, 43670, 57962, 64240, 69872, 87340, 115924, 144905, 174680, 231848, 289810, 318791, 349360, 463696, 579620, 637582, 1159240, 1275164, 1593955, 2318480, 2550328, 3187910, 5100656, 6375820, 12751640, 25503280]

約数ペア:

[(1, 25503280), (2, 12751640), (4, 6375820), (5, 5100656), (8, 3187910), (10, 2550328), (11, 2318480), (16, 1593955), (20, 1275164), (22, 1159240), (40, 637582), (44, 579620), (55, 463696), (73, 349360), (80, 318791), (88, 289810), (110, 231848), (146, 174680), (176, 144905), (220, 115924), (292, 87340), (365, 69872), (397, 64240), (440, 57962), (584, 43670), (730, 34936), (794, 32120), (803, 31760), (880, 28981), (1168, 21835), (1460, 17468), (1588, 16060), (1606, 15880), (1985, 12848), (2920, 8734), (3176, 8030), (3212, 7940), (3970, 6424), (4015, 6352), (4367, 5840)]