199665080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{577}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 463186080

約数和(自身を除く): 263521000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 211, 328, 410, 422, 577, 820, 844, 1055, 1154, 1640, 1688, 2110, 2308, 2885, 4220, 4616, 5770, 8440, 8651, 11540, 17302, 23080, 23657, 34604, 43255, 47314, 69208, 86510, 94628, 118285, 121747, 173020, 189256, 236570, 243494, 346040, 473140, 486988, 608735, 946280, 973976, 1217470, 2434940, 4869880, 4991627, 9983254, 19966508, 24958135, 39933016, 49916270, 99832540, 199665080]

約数ペア:

[(1, 199665080), (2, 99832540), (4, 49916270), (5, 39933016), (8, 24958135), (10, 19966508), (20, 9983254), (40, 4991627), (41, 4869880), (82, 2434940), (164, 1217470), (205, 973976), (211, 946280), (328, 608735), (410, 486988), (422, 473140), (577, 346040), (820, 243494), (844, 236570), (1055, 189256), (1154, 173020), (1640, 121747), (1688, 118285), (2110, 94628), (2308, 86510), (2885, 69208), (4220, 47314), (4616, 43255), (5770, 34604), (8440, 23657), (8651, 23080), (11540, 17302)]