9921860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1231}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 23181312

約数和(自身を除く): 13259452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1231, 1612, 2015, 2462, 4030, 4924, 6155, 8060, 12310, 16003, 24620, 32006, 38161, 64012, 76322, 80015, 152644, 160030, 190805, 320060, 381610, 496093, 763220, 992186, 1984372, 2480465, 4960930, 9921860]

約数ペア:

[(1, 9921860), (2, 4960930), (4, 2480465), (5, 1984372), (10, 992186), (13, 763220), (20, 496093), (26, 381610), (31, 320060), (52, 190805), (62, 160030), (65, 152644), (124, 80015), (130, 76322), (155, 64012), (260, 38161), (310, 32006), (403, 24620), (620, 16003), (806, 12310), (1231, 8060), (1612, 6155), (2015, 4924), (2462, 4030)]