215791020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{399613}}^1$

素因数の和:399631

約数の個数: 48

約数和(自身を含む): 671351520

約数和(自身を除く): 455560500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 399613, 799226, 1198839, 1598452, 1998065, 2397678, 3596517, 3996130, 4795356, 5994195, 7193034, 7992260, 10789551, 11988390, 14386068, 17982585, 21579102, 23976780, 35965170, 43158204, 53947755, 71930340, 107895510, 215791020]

約数ペア:

[(1, 215791020), (2, 107895510), (3, 71930340), (4, 53947755), (5, 43158204), (6, 35965170), (9, 23976780), (10, 21579102), (12, 17982585), (15, 14386068), (18, 11988390), (20, 10789551), (27, 7992260), (30, 7193034), (36, 5994195), (45, 4795356), (54, 3996130), (60, 3596517), (90, 2397678), (108, 1998065), (135, 1598452), (180, 1198839), (270, 799226), (540, 399613)]