12988890850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4987}}^1\times {\mathrm{4007}}^1$

素因数の和:9019

約数の個数: 48

約数和(自身を含む): 26029459008

約数和(自身を除く): 13040568158

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 4007, 4987, 8014, 9974, 20035, 24935, 40070, 49870, 52091, 64831, 100175, 104182, 124675, 129662, 200350, 249350, 260455, 324155, 520910, 648310, 1302275, 1620775, 2604550, 3241550, 19982909, 39965818, 99914545, 199829090, 259777817, 499572725, 519555634, 999145450, 1298889085, 2597778170, 6494445425, 12988890850]

約数ペア:

[(1, 12988890850), (2, 6494445425), (5, 2597778170), (10, 1298889085), (13, 999145450), (25, 519555634), (26, 499572725), (50, 259777817), (65, 199829090), (130, 99914545), (325, 39965818), (650, 19982909), (4007, 3241550), (4987, 2604550), (8014, 1620775), (9974, 1302275), (20035, 648310), (24935, 520910), (40070, 324155), (49870, 260455), (52091, 249350), (64831, 200350), (100175, 129662), (104182, 124675)]