406978660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{3911}}^1$

素因数の和:3985

約数の個数: 72

約数和(自身を含む): 961507008

約数和(自身を除く): 554528348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 121, 172, 215, 220, 242, 430, 473, 484, 605, 860, 946, 1210, 1892, 2365, 2420, 3911, 4730, 5203, 7822, 9460, 10406, 15644, 19555, 20812, 26015, 39110, 43021, 52030, 78220, 86042, 104060, 168173, 172084, 215105, 336346, 430210, 473231, 672692, 840865, 860420, 946462, 1681730, 1849903, 1892924, 2366155, 3363460, 3699806, 4732310, 7399612, 9249515, 9464620, 18499030, 20348933, 36998060, 40697866, 81395732, 101744665, 203489330, 406978660]

約数ペア:

[(1, 406978660), (2, 203489330), (4, 101744665), (5, 81395732), (10, 40697866), (11, 36998060), (20, 20348933), (22, 18499030), (43, 9464620), (44, 9249515), (55, 7399612), (86, 4732310), (110, 3699806), (121, 3363460), (172, 2366155), (215, 1892924), (220, 1849903), (242, 1681730), (430, 946462), (473, 860420), (484, 840865), (605, 672692), (860, 473231), (946, 430210), (1210, 336346), (1892, 215105), (2365, 172084), (2420, 168173), (3911, 104060), (4730, 86042), (5203, 78220), (7822, 52030), (9460, 43021), (10406, 39110), (15644, 26015), (19555, 20812)]