72450640

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2017}}^1$

素因数の和:2479

約数の個数: 40

約数和(自身を含む): 168906600

約数和(自身を除く): 96455960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 898, 1796, 2017, 2245, 3592, 4034, 4490, 7184, 8068, 8980, 10085, 16136, 17960, 20170, 32272, 35920, 40340, 80680, 161360, 905633, 1811266, 3622532, 4528165, 7245064, 9056330, 14490128, 18112660, 36225320, 72450640]

約数ペア:

[(1, 72450640), (2, 36225320), (4, 18112660), (5, 14490128), (8, 9056330), (10, 7245064), (16, 4528165), (20, 3622532), (40, 1811266), (80, 905633), (449, 161360), (898, 80680), (1796, 40340), (2017, 35920), (2245, 32272), (3592, 20170), (4034, 17960), (4490, 16136), (7184, 10085), (8068, 8980)]