118386820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{317}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 253870848

約数和(自身を除く): 135484028

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 263, 284, 317, 355, 526, 634, 710, 1052, 1268, 1315, 1420, 1585, 2630, 3170, 5260, 6340, 18673, 22507, 37346, 45014, 74692, 83371, 90028, 93365, 112535, 166742, 186730, 225070, 333484, 373460, 416855, 450140, 833710, 1667420, 5919341, 11838682, 23677364, 29596705, 59193410, 118386820]

約数ペア:

[(1, 118386820), (2, 59193410), (4, 29596705), (5, 23677364), (10, 11838682), (20, 5919341), (71, 1667420), (142, 833710), (263, 450140), (284, 416855), (317, 373460), (355, 333484), (526, 225070), (634, 186730), (710, 166742), (1052, 112535), (1268, 93365), (1315, 90028), (1420, 83371), (1585, 74692), (2630, 45014), (3170, 37346), (5260, 22507), (6340, 18673)]