20166250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:125

約数の個数: 80

約数和(自身を含む): 43692264

約数和(自身を除く): 23526014

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 73, 85, 125, 130, 146, 170, 221, 250, 325, 365, 425, 442, 625, 650, 730, 850, 949, 1105, 1241, 1250, 1625, 1825, 1898, 2125, 2210, 2482, 3250, 3650, 4250, 4745, 5525, 6205, 8125, 9125, 9490, 10625, 11050, 12410, 16133, 16250, 18250, 21250, 23725, 27625, 31025, 32266, 45625, 47450, 55250, 62050, 80665, 91250, 118625, 138125, 155125, 161330, 237250, 276250, 310250, 403325, 593125, 775625, 806650, 1186250, 1551250, 2016625, 4033250, 10083125, 20166250]

約数ペア:

[(1, 20166250), (2, 10083125), (5, 4033250), (10, 2016625), (13, 1551250), (17, 1186250), (25, 806650), (26, 775625), (34, 593125), (50, 403325), (65, 310250), (73, 276250), (85, 237250), (125, 161330), (130, 155125), (146, 138125), (170, 118625), (221, 91250), (250, 80665), (325, 62050), (365, 55250), (425, 47450), (442, 45625), (625, 32266), (650, 31025), (730, 27625), (850, 23725), (949, 21250), (1105, 18250), (1241, 16250), (1250, 16133), (1625, 12410), (1825, 11050), (1898, 10625), (2125, 9490), (2210, 9125), (2482, 8125), (3250, 6205), (3650, 5525), (4250, 4745)]