20199874040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{525491}}^1$

素因数の和:525564

約数の個数: 48

約数和(自身を含む): 46963220040

約数和(自身を除く): 26763346000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7688, 9610, 19220, 38440, 525491, 1050982, 2101964, 2627455, 4203928, 5254910, 10509820, 16290221, 21019640, 32580442, 65160884, 81451105, 130321768, 162902210, 325804420, 504996851, 651608840, 1009993702, 2019987404, 2524984255, 4039974808, 5049968510, 10099937020, 20199874040]

約数ペア:

[(1, 20199874040), (2, 10099937020), (4, 5049968510), (5, 4039974808), (8, 2524984255), (10, 2019987404), (20, 1009993702), (31, 651608840), (40, 504996851), (62, 325804420), (124, 162902210), (155, 130321768), (248, 81451105), (310, 65160884), (620, 32580442), (961, 21019640), (1240, 16290221), (1922, 10509820), (3844, 5254910), (4805, 4203928), (7688, 2627455), (9610, 2101964), (19220, 1050982), (38440, 525491)]