201520840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{5003}}^1$

素因数の和:5086

約数の個数: 64

約数和(自身を含む): 486388800

約数和(自身を除く): 284867960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 53, 76, 95, 106, 152, 190, 212, 265, 380, 424, 530, 760, 1007, 1060, 2014, 2120, 4028, 5003, 5035, 8056, 10006, 10070, 20012, 20140, 25015, 40024, 40280, 50030, 95057, 100060, 190114, 200120, 265159, 380228, 475285, 530318, 760456, 950570, 1060636, 1325795, 1901140, 2121272, 2651590, 3802280, 5038021, 5303180, 10076042, 10606360, 20152084, 25190105, 40304168, 50380210, 100760420, 201520840]

約数ペア:

[(1, 201520840), (2, 100760420), (4, 50380210), (5, 40304168), (8, 25190105), (10, 20152084), (19, 10606360), (20, 10076042), (38, 5303180), (40, 5038021), (53, 3802280), (76, 2651590), (95, 2121272), (106, 1901140), (152, 1325795), (190, 1060636), (212, 950570), (265, 760456), (380, 530318), (424, 475285), (530, 380228), (760, 265159), (1007, 200120), (1060, 190114), (2014, 100060), (2120, 95057), (4028, 50030), (5003, 40280), (5035, 40024), (8056, 25015), (10006, 20140), (10070, 20012)]