40628745

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 77385672

約数和(自身を除く): 36756927

約数列:

[1, 3, 5, 9, 15, 19, 41, 45, 57, 61, 95, 123, 171, 183, 205, 285, 305, 361, 369, 549, 615, 779, 855, 915, 1083, 1159, 1805, 1845, 2337, 2501, 2745, 3249, 3477, 3895, 5415, 5795, 7011, 7503, 10431, 11685, 12505, 14801, 16245, 17385, 22021, 22509, 35055, 37515, 44403, 47519, 52155, 66063, 74005, 110105, 112545, 133209, 142557, 198189, 222015, 237595, 330315, 427671, 666045, 712785, 902861, 990945, 2138355, 2708583, 4514305, 8125749, 13542915, 40628745]

約数ペア:

[(1, 40628745), (3, 13542915), (5, 8125749), (9, 4514305), (15, 2708583), (19, 2138355), (41, 990945), (45, 902861), (57, 712785), (61, 666045), (95, 427671), (123, 330315), (171, 237595), (183, 222015), (205, 198189), (285, 142557), (305, 133209), (361, 112545), (369, 110105), (549, 74005), (615, 66063), (779, 52155), (855, 47519), (915, 44403), (1083, 37515), (1159, 35055), (1805, 22509), (1845, 22021), (2337, 17385), (2501, 16245), (2745, 14801), (3249, 12505), (3477, 11685), (3895, 10431), (5415, 7503), (5795, 7011)]