40389520

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1613}}^1$

素因数の和:1939

約数の個数: 40

約数和(自身を含む): 94264056

約数和(自身を除く): 53874536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 1613, 2504, 3130, 3226, 5008, 6260, 6452, 8065, 12520, 12904, 16130, 25040, 25808, 32260, 64520, 129040, 504869, 1009738, 2019476, 2524345, 4038952, 5048690, 8077904, 10097380, 20194760, 40389520]

約数ペア:

[(1, 40389520), (2, 20194760), (4, 10097380), (5, 8077904), (8, 5048690), (10, 4038952), (16, 2524345), (20, 2019476), (40, 1009738), (80, 504869), (313, 129040), (626, 64520), (1252, 32260), (1565, 25808), (1613, 25040), (2504, 16130), (3130, 12904), (3226, 12520), (5008, 8065), (6260, 6452)]