20637840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85991}}^1$

素因数の和:86007

約数の個数: 40

約数和(自身を含む): 63978048

約数和(自身を除く): 43340208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85991, 171982, 257973, 343964, 429955, 515946, 687928, 859910, 1031892, 1289865, 1375856, 1719820, 2063784, 2579730, 3439640, 4127568, 5159460, 6879280, 10318920, 20637840]

約数ペア:

[(1, 20637840), (2, 10318920), (3, 6879280), (4, 5159460), (5, 4127568), (6, 3439640), (8, 2579730), (10, 2063784), (12, 1719820), (15, 1375856), (16, 1289865), (20, 1031892), (24, 859910), (30, 687928), (40, 515946), (48, 429955), (60, 343964), (80, 257973), (120, 171982), (240, 85991)]