19866250

素因数分解:

$2^1\times 5^4\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:736

約数の個数: 40

約数和(自身を含む): 38912544

約数和(自身を除く): 19046294

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 125, 230, 250, 575, 625, 691, 1150, 1250, 1382, 2875, 3455, 5750, 6910, 14375, 15893, 17275, 28750, 31786, 34550, 79465, 86375, 158930, 172750, 397325, 431875, 794650, 863750, 1986625, 3973250, 9933125, 19866250]

約数ペア:

[(1, 19866250), (2, 9933125), (5, 3973250), (10, 1986625), (23, 863750), (25, 794650), (46, 431875), (50, 397325), (115, 172750), (125, 158930), (230, 86375), (250, 79465), (575, 34550), (625, 31786), (691, 28750), (1150, 17275), (1250, 15893), (1382, 14375), (2875, 6910), (3455, 5750)]