87118900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2731}}^1$

素因数の和:2785

約数の個数: 72

約数和(自身を含む): 213423840

約数和(自身を除く): 126304940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 100, 110, 116, 145, 220, 275, 290, 319, 550, 580, 638, 725, 1100, 1276, 1450, 1595, 2731, 2900, 3190, 5462, 6380, 7975, 10924, 13655, 15950, 27310, 30041, 31900, 54620, 60082, 68275, 79199, 120164, 136550, 150205, 158398, 273100, 300410, 316796, 395995, 600820, 751025, 791990, 871189, 1502050, 1583980, 1742378, 1979975, 3004100, 3484756, 3959950, 4355945, 7919900, 8711890, 17423780, 21779725, 43559450, 87118900]

約数ペア:

[(1, 87118900), (2, 43559450), (4, 21779725), (5, 17423780), (10, 8711890), (11, 7919900), (20, 4355945), (22, 3959950), (25, 3484756), (29, 3004100), (44, 1979975), (50, 1742378), (55, 1583980), (58, 1502050), (100, 871189), (110, 791990), (116, 751025), (145, 600820), (220, 395995), (275, 316796), (290, 300410), (319, 273100), (550, 158398), (580, 150205), (638, 136550), (725, 120164), (1100, 79199), (1276, 68275), (1450, 60082), (1595, 54620), (2731, 31900), (2900, 30041), (3190, 27310), (5462, 15950), (6380, 13655), (7975, 10924)]