19698249820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1\times {\mathrm{12101}}^1$

素因数の和:12718

約数の個数: 48

約数和(自身を含む): 41679288000

約数和(自身を除く): 21981038180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 409, 796, 818, 995, 1636, 1990, 2045, 3980, 4090, 8180, 12101, 24202, 48404, 60505, 81391, 121010, 162782, 242020, 325564, 406955, 813910, 1627820, 2408099, 4816198, 4949309, 9632396, 9898618, 12040495, 19797236, 24080990, 24746545, 48161980, 49493090, 98986180, 984912491, 1969824982, 3939649964, 4924562455, 9849124910, 19698249820]

約数ペア:

[(1, 19698249820), (2, 9849124910), (4, 4924562455), (5, 3939649964), (10, 1969824982), (20, 984912491), (199, 98986180), (398, 49493090), (409, 48161980), (796, 24746545), (818, 24080990), (995, 19797236), (1636, 12040495), (1990, 9898618), (2045, 9632396), (3980, 4949309), (4090, 4816198), (8180, 2408099), (12101, 1627820), (24202, 813910), (48404, 406955), (60505, 325564), (81391, 242020), (121010, 162782)]