98620420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{349}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 211680000

約数和(自身を除く): 113059580

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 199, 284, 349, 355, 398, 698, 710, 796, 995, 1396, 1420, 1745, 1990, 3490, 3980, 6980, 14129, 24779, 28258, 49558, 56516, 69451, 70645, 99116, 123895, 138902, 141290, 247790, 277804, 282580, 347255, 495580, 694510, 1389020, 4931021, 9862042, 19724084, 24655105, 49310210, 98620420]

約数ペア:

[(1, 98620420), (2, 49310210), (4, 24655105), (5, 19724084), (10, 9862042), (20, 4931021), (71, 1389020), (142, 694510), (199, 495580), (284, 347255), (349, 282580), (355, 277804), (398, 247790), (698, 141290), (710, 138902), (796, 123895), (995, 99116), (1396, 70645), (1420, 69451), (1745, 56516), (1990, 49558), (3490, 28258), (3980, 24779), (6980, 14129)]