15618920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 22120600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 103, 136, 170, 206, 223, 340, 412, 446, 515, 680, 824, 892, 1030, 1115, 1751, 1784, 2060, 2230, 3502, 3791, 4120, 4460, 7004, 7582, 8755, 8920, 14008, 15164, 17510, 18955, 22969, 30328, 35020, 37910, 45938, 70040, 75820, 91876, 114845, 151640, 183752, 229690, 390473, 459380, 780946, 918760, 1561892, 1952365, 3123784, 3904730, 7809460, 15618920]

約数ペア:

[(1, 15618920), (2, 7809460), (4, 3904730), (5, 3123784), (8, 1952365), (10, 1561892), (17, 918760), (20, 780946), (34, 459380), (40, 390473), (68, 229690), (85, 183752), (103, 151640), (136, 114845), (170, 91876), (206, 75820), (223, 70040), (340, 45938), (412, 37910), (446, 35020), (515, 30328), (680, 22969), (824, 18955), (892, 17510), (1030, 15164), (1115, 14008), (1751, 8920), (1784, 8755), (2060, 7582), (2230, 7004), (3502, 4460), (3791, 4120)]