156678920

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{16253}}^1$

素因数の和:16505

約数の個数: 32

約数和(自身を含む): 354012120

約数和(自身を除く): 197333200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 16253, 32506, 65012, 81265, 130024, 162530, 325060, 650120, 3916973, 7833946, 15667892, 19584865, 31335784, 39169730, 78339460, 156678920]

約数ペア:

[(1, 156678920), (2, 78339460), (4, 39169730), (5, 31335784), (8, 19584865), (10, 15667892), (20, 7833946), (40, 3916973), (241, 650120), (482, 325060), (964, 162530), (1205, 130024), (1928, 81265), (2410, 65012), (4820, 32506), (9640, 16253)]