64974915

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 118849536

約数和(自身を除く): 53874621

約数列:

[1, 3, 5, 9, 15, 31, 45, 47, 93, 141, 155, 235, 279, 423, 465, 705, 991, 1395, 1457, 2115, 2973, 4371, 4955, 7285, 8919, 13113, 14865, 21855, 30721, 44595, 46577, 65565, 92163, 139731, 153605, 232885, 276489, 419193, 460815, 698655, 1382445, 1443887, 2095965, 4331661, 7219435, 12994983, 21658305, 64974915]

約数ペア:

[(1, 64974915), (3, 21658305), (5, 12994983), (9, 7219435), (15, 4331661), (31, 2095965), (45, 1443887), (47, 1382445), (93, 698655), (141, 460815), (155, 419193), (235, 276489), (279, 232885), (423, 153605), (465, 139731), (705, 92163), (991, 65565), (1395, 46577), (1457, 44595), (2115, 30721), (2973, 21855), (4371, 14865), (4955, 13113), (7285, 8919)]