81450200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31327}}^1$

素因数の和:31356

約数の個数: 48

約数和(自身を含む): 203945280

約数和(自身を除く): 122495080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 31327, 62654, 125308, 156635, 250616, 313270, 407251, 626540, 783175, 814502, 1253080, 1566350, 1629004, 2036255, 3132700, 3258008, 4072510, 6265400, 8145020, 10181275, 16290040, 20362550, 40725100, 81450200]

約数ペア:

[(1, 81450200), (2, 40725100), (4, 20362550), (5, 16290040), (8, 10181275), (10, 8145020), (13, 6265400), (20, 4072510), (25, 3258008), (26, 3132700), (40, 2036255), (50, 1629004), (52, 1566350), (65, 1253080), (100, 814502), (104, 783175), (130, 626540), (200, 407251), (260, 313270), (325, 250616), (520, 156635), (650, 125308), (1300, 62654), (2600, 31327)]