256304310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{140057}}^1$

素因数の和:140128

約数の個数: 32

約数和(自身を含む): 625218912

約数和(自身を除く): 368914602

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830, 140057, 280114, 420171, 700285, 840342, 1400570, 2100855, 4201710, 8543477, 17086954, 25630431, 42717385, 51260862, 85434770, 128152155, 256304310]

約数ペア:

[(1, 256304310), (2, 128152155), (3, 85434770), (5, 51260862), (6, 42717385), (10, 25630431), (15, 17086954), (30, 8543477), (61, 4201710), (122, 2100855), (183, 1400570), (305, 840342), (366, 700285), (610, 420171), (915, 280114), (1830, 140057)]