15871990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{239}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 29808000

約数和(自身を除く): 13936010

約数列:

[1, 2, 5, 10, 29, 58, 145, 229, 239, 290, 458, 478, 1145, 1195, 2290, 2390, 6641, 6931, 13282, 13862, 33205, 34655, 54731, 66410, 69310, 109462, 273655, 547310, 1587199, 3174398, 7935995, 15871990]

約数ペア:

[(1, 15871990), (2, 7935995), (5, 3174398), (10, 1587199), (29, 547310), (58, 273655), (145, 109462), (229, 69310), (239, 66410), (290, 54731), (458, 34655), (478, 33205), (1145, 13862), (1195, 13282), (2290, 6931), (2390, 6641)]