639564585

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{827}}^1$

素因数の和:998

約数の個数: 64

約数和(自身を含む): 1154165760

約数和(自身を除く): 514601175

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 109, 129, 165, 215, 327, 473, 545, 645, 827, 1199, 1419, 1635, 2365, 2481, 3597, 4135, 4687, 5995, 7095, 9097, 12405, 14061, 17985, 23435, 27291, 35561, 45485, 51557, 70305, 90143, 106683, 136455, 154671, 177805, 257785, 270429, 391171, 450715, 533415, 773355, 991573, 1173513, 1352145, 1955855, 2974719, 3876149, 4957865, 5867565, 11628447, 14873595, 19380745, 42637639, 58142235, 127912917, 213188195, 639564585]

約数ペア:

[(1, 639564585), (3, 213188195), (5, 127912917), (11, 58142235), (15, 42637639), (33, 19380745), (43, 14873595), (55, 11628447), (109, 5867565), (129, 4957865), (165, 3876149), (215, 2974719), (327, 1955855), (473, 1352145), (545, 1173513), (645, 991573), (827, 773355), (1199, 533415), (1419, 450715), (1635, 391171), (2365, 270429), (2481, 257785), (3597, 177805), (4135, 154671), (4687, 136455), (5995, 106683), (7095, 90143), (9097, 70305), (12405, 51557), (14061, 45485), (17985, 35561), (23435, 27291)]