20878320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86993}}^1$

素因数の和:87009

約数の個数: 40

約数和(自身を含む): 64723536

約数和(自身を除く): 43845216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86993, 173986, 260979, 347972, 434965, 521958, 695944, 869930, 1043916, 1304895, 1391888, 1739860, 2087832, 2609790, 3479720, 4175664, 5219580, 6959440, 10439160, 20878320]

約数ペア:

[(1, 20878320), (2, 10439160), (3, 6959440), (4, 5219580), (5, 4175664), (6, 3479720), (8, 2609790), (10, 2087832), (12, 1739860), (15, 1391888), (16, 1304895), (20, 1043916), (24, 869930), (30, 695944), (40, 521958), (48, 434965), (60, 347972), (80, 260979), (120, 173986), (240, 86993)]