18927500

素因数分解:

$2^2\times 5^4\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:204

約数の個数: 60

約数和(自身を含む): 42380184

約数和(自身を除く): 23452684

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 113, 125, 134, 226, 250, 268, 335, 452, 500, 565, 625, 670, 1130, 1250, 1340, 1675, 2260, 2500, 2825, 3350, 5650, 6700, 7571, 8375, 11300, 14125, 15142, 16750, 28250, 30284, 33500, 37855, 41875, 56500, 70625, 75710, 83750, 141250, 151420, 167500, 189275, 282500, 378550, 757100, 946375, 1892750, 3785500, 4731875, 9463750, 18927500]

約数ペア:

[(1, 18927500), (2, 9463750), (4, 4731875), (5, 3785500), (10, 1892750), (20, 946375), (25, 757100), (50, 378550), (67, 282500), (100, 189275), (113, 167500), (125, 151420), (134, 141250), (226, 83750), (250, 75710), (268, 70625), (335, 56500), (452, 41875), (500, 37855), (565, 33500), (625, 30284), (670, 28250), (1130, 16750), (1250, 15142), (1340, 14125), (1675, 11300), (2260, 8375), (2500, 7571), (2825, 6700), (3350, 5650)]