18901479880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1741}}^1\times {\mathrm{4051}}^1$

素因数の和:5870

約数の個数: 64

約数和(自身を含む): 43198534080

約数和(自身を除く): 24297054200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 1741, 2680, 3482, 4051, 6964, 8102, 8705, 13928, 16204, 17410, 20255, 32408, 34820, 40510, 69640, 81020, 116647, 162040, 233294, 271417, 466588, 542834, 583235, 933176, 1085668, 1166470, 1357085, 2171336, 2332940, 2714170, 4665880, 5428340, 7052791, 10856680, 14105582, 28211164, 35263955, 56422328, 70527910, 141055820, 282111640, 472536997, 945073994, 1890147988, 2362684985, 3780295976, 4725369970, 9450739940, 18901479880]

約数ペア:

[(1, 18901479880), (2, 9450739940), (4, 4725369970), (5, 3780295976), (8, 2362684985), (10, 1890147988), (20, 945073994), (40, 472536997), (67, 282111640), (134, 141055820), (268, 70527910), (335, 56422328), (536, 35263955), (670, 28211164), (1340, 14105582), (1741, 10856680), (2680, 7052791), (3482, 5428340), (4051, 4665880), (6964, 2714170), (8102, 2332940), (8705, 2171336), (13928, 1357085), (16204, 1166470), (17410, 1085668), (20255, 933176), (32408, 583235), (34820, 542834), (40510, 466588), (69640, 271417), (81020, 233294), (116647, 162040)]