20165135500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{1390699}}^1$

素因数の和:1390747

約数の個数: 48

約数和(自身を含む): 45559332000

約数和(自身を除く): 25394196500

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 290, 500, 580, 725, 1450, 2900, 3625, 7250, 14500, 1390699, 2781398, 5562796, 6953495, 13906990, 27813980, 34767475, 40330271, 69534950, 80660542, 139069900, 161321084, 173837375, 201651355, 347674750, 403302710, 695349500, 806605420, 1008256775, 2016513550, 4033027100, 5041283875, 10082567750, 20165135500]

約数ペア:

[(1, 20165135500), (2, 10082567750), (4, 5041283875), (5, 4033027100), (10, 2016513550), (20, 1008256775), (25, 806605420), (29, 695349500), (50, 403302710), (58, 347674750), (100, 201651355), (116, 173837375), (125, 161321084), (145, 139069900), (250, 80660542), (290, 69534950), (500, 40330271), (580, 34767475), (725, 27813980), (1450, 13906990), (2900, 6953495), (3625, 5562796), (7250, 2781398), (14500, 1390699)]