66645700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1409}}^1$

素因数の和:1477

約数の個数: 72

約数和(自身を含む): 161552160

約数和(自身を除く): 94906460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1409, 1892, 2150, 2365, 2818, 4300, 4730, 5636, 7045, 9460, 11825, 14090, 15499, 23650, 28180, 30998, 35225, 47300, 60587, 61996, 70450, 77495, 121174, 140900, 154990, 242348, 302935, 309980, 387475, 605870, 666457, 774950, 1211740, 1332914, 1514675, 1549900, 2665828, 3029350, 3332285, 6058700, 6664570, 13329140, 16661425, 33322850, 66645700]

約数ペア:

[(1, 66645700), (2, 33322850), (4, 16661425), (5, 13329140), (10, 6664570), (11, 6058700), (20, 3332285), (22, 3029350), (25, 2665828), (43, 1549900), (44, 1514675), (50, 1332914), (55, 1211740), (86, 774950), (100, 666457), (110, 605870), (172, 387475), (215, 309980), (220, 302935), (275, 242348), (430, 154990), (473, 140900), (550, 121174), (860, 77495), (946, 70450), (1075, 61996), (1100, 60587), (1409, 47300), (1892, 35225), (2150, 30998), (2365, 28180), (2818, 23650), (4300, 15499), (4730, 14090), (5636, 11825), (7045, 9460)]