31304468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 61246080

約数和(自身を除く): 29941612

約数列:

[1, 2, 4, 13, 26, 52, 61, 71, 122, 139, 142, 244, 278, 284, 556, 793, 923, 1586, 1807, 1846, 3172, 3614, 3692, 4331, 7228, 8479, 8662, 9869, 16958, 17324, 19738, 33916, 39476, 56303, 110227, 112606, 128297, 220454, 225212, 256594, 440908, 513188, 602009, 1204018, 2408036, 7826117, 15652234, 31304468]

約数ペア:

[(1, 31304468), (2, 15652234), (4, 7826117), (13, 2408036), (26, 1204018), (52, 602009), (61, 513188), (71, 440908), (122, 256594), (139, 225212), (142, 220454), (244, 128297), (278, 112606), (284, 110227), (556, 56303), (793, 39476), (923, 33916), (1586, 19738), (1807, 17324), (1846, 16958), (3172, 9869), (3614, 8662), (3692, 8479), (4331, 7228)]