8512900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 20623680

約数和(自身を除く): 12110780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 109, 110, 142, 218, 220, 275, 284, 355, 436, 545, 550, 710, 781, 1090, 1100, 1199, 1420, 1562, 1775, 2180, 2398, 2725, 3124, 3550, 3905, 4796, 5450, 5995, 7100, 7739, 7810, 10900, 11990, 15478, 15620, 19525, 23980, 29975, 30956, 38695, 39050, 59950, 77390, 78100, 85129, 119900, 154780, 170258, 193475, 340516, 386950, 425645, 773900, 851290, 1702580, 2128225, 4256450, 8512900]

約数ペア:

[(1, 8512900), (2, 4256450), (4, 2128225), (5, 1702580), (10, 851290), (11, 773900), (20, 425645), (22, 386950), (25, 340516), (44, 193475), (50, 170258), (55, 154780), (71, 119900), (100, 85129), (109, 78100), (110, 77390), (142, 59950), (218, 39050), (220, 38695), (275, 30956), (284, 29975), (355, 23980), (436, 19525), (545, 15620), (550, 15478), (710, 11990), (781, 10900), (1090, 7810), (1100, 7739), (1199, 7100), (1420, 5995), (1562, 5450), (1775, 4796), (2180, 3905), (2398, 3550), (2725, 3124)]