890993475

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{919}}^1$

素因数の和:1105

約数の個数: 72

約数和(自身を含む): 1661004800

約数和(自身を除く): 770011325

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 139, 155, 225, 279, 417, 465, 695, 775, 919, 1251, 1395, 2085, 2325, 2757, 3475, 4309, 4595, 6255, 6975, 8271, 10425, 12927, 13785, 21545, 22975, 28489, 31275, 38781, 41355, 64635, 68925, 85467, 107725, 127741, 142445, 193905, 206775, 256401, 323175, 383223, 427335, 638705, 712225, 969525, 1149669, 1282005, 1916115, 2136675, 3193525, 3959971, 5748345, 6410025, 9580575, 11879913, 19799855, 28741725, 35639739, 59399565, 98999275, 178198695, 296997825, 890993475]

約数ペア:

[(1, 890993475), (3, 296997825), (5, 178198695), (9, 98999275), (15, 59399565), (25, 35639739), (31, 28741725), (45, 19799855), (75, 11879913), (93, 9580575), (139, 6410025), (155, 5748345), (225, 3959971), (279, 3193525), (417, 2136675), (465, 1916115), (695, 1282005), (775, 1149669), (919, 969525), (1251, 712225), (1395, 638705), (2085, 427335), (2325, 383223), (2757, 323175), (3475, 256401), (4309, 206775), (4595, 193905), (6255, 142445), (6975, 127741), (8271, 107725), (10425, 85467), (12927, 68925), (13785, 64635), (21545, 41355), (22975, 38781), (28489, 31275)]