15911720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1$

素因数の和:123

約数の個数: 96

約数和(自身を含む): 41389920

約数和(自身を除く): 25478200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 43, 44, 55, 58, 86, 88, 110, 116, 145, 172, 215, 220, 232, 290, 319, 344, 430, 440, 473, 580, 638, 841, 860, 946, 1160, 1247, 1276, 1595, 1682, 1720, 1892, 2365, 2494, 2552, 3190, 3364, 3784, 4205, 4730, 4988, 6235, 6380, 6728, 8410, 9251, 9460, 9976, 12470, 12760, 13717, 16820, 18502, 18920, 24940, 27434, 33640, 36163, 37004, 46255, 49880, 54868, 68585, 72326, 74008, 92510, 109736, 137170, 144652, 180815, 185020, 274340, 289304, 361630, 370040, 397793, 548680, 723260, 795586, 1446520, 1591172, 1988965, 3182344, 3977930, 7955860, 15911720]

約数ペア:

[(1, 15911720), (2, 7955860), (4, 3977930), (5, 3182344), (8, 1988965), (10, 1591172), (11, 1446520), (20, 795586), (22, 723260), (29, 548680), (40, 397793), (43, 370040), (44, 361630), (55, 289304), (58, 274340), (86, 185020), (88, 180815), (110, 144652), (116, 137170), (145, 109736), (172, 92510), (215, 74008), (220, 72326), (232, 68585), (290, 54868), (319, 49880), (344, 46255), (430, 37004), (440, 36163), (473, 33640), (580, 27434), (638, 24940), (841, 18920), (860, 18502), (946, 16820), (1160, 13717), (1247, 12760), (1276, 12470), (1595, 9976), (1682, 9460), (1720, 9251), (1892, 8410), (2365, 6728), (2494, 6380), (2552, 6235), (3190, 4988), (3364, 4730), (3784, 4205)]