65661860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 155335488

約数和(自身を除く): 89673628

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, 631, 860, 946, 1210, 1262, 1892, 2365, 2420, 2524, 3155, 4730, 5203, 6310, 6941, 9460, 10406, 12620, 13882, 20812, 26015, 27133, 27764, 34705, 52030, 54266, 69410, 76351, 104060, 108532, 135665, 138820, 152702, 271330, 298463, 305404, 381755, 542660, 596926, 763510, 1193852, 1492315, 1527020, 2984630, 3283093, 5969260, 6566186, 13132372, 16415465, 32830930, 65661860]

約数ペア:

[(1, 65661860), (2, 32830930), (4, 16415465), (5, 13132372), (10, 6566186), (11, 5969260), (20, 3283093), (22, 2984630), (43, 1527020), (44, 1492315), (55, 1193852), (86, 763510), (110, 596926), (121, 542660), (172, 381755), (215, 305404), (220, 298463), (242, 271330), (430, 152702), (473, 138820), (484, 135665), (605, 108532), (631, 104060), (860, 76351), (946, 69410), (1210, 54266), (1262, 52030), (1892, 34705), (2365, 27764), (2420, 27133), (2524, 26015), (3155, 20812), (4730, 13882), (5203, 12620), (6310, 10406), (6941, 9460)]