31915940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{823}}^1$

素因数の和:1116

約数の個数: 48

約数和(自身を含む): 76968192

約数和(自身を除く): 45052252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 823, 1108, 1385, 1646, 1939, 2770, 3292, 3878, 4115, 5540, 5761, 7756, 8230, 9695, 11522, 16460, 19390, 23044, 28805, 38780, 57610, 115220, 227971, 455942, 911884, 1139855, 1595797, 2279710, 3191594, 4559420, 6383188, 7978985, 15957970, 31915940]

約数ペア:

[(1, 31915940), (2, 15957970), (4, 7978985), (5, 6383188), (7, 4559420), (10, 3191594), (14, 2279710), (20, 1595797), (28, 1139855), (35, 911884), (70, 455942), (140, 227971), (277, 115220), (554, 57610), (823, 38780), (1108, 28805), (1385, 23044), (1646, 19390), (1939, 16460), (2770, 11522), (3292, 9695), (3878, 8230), (4115, 7756), (5540, 5761)]