248809720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1231}}^1$

素因数の和:1436

約数の個数: 64

約数和(自身を含む): 581898240

約数和(自身を除く): 333088520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 620, 652, 815, 1231, 1240, 1304, 1630, 2462, 3260, 4924, 5053, 6155, 6520, 9848, 10106, 12310, 20212, 24620, 25265, 38161, 40424, 49240, 50530, 76322, 101060, 152644, 190805, 200653, 202120, 305288, 381610, 401306, 763220, 802612, 1003265, 1526440, 1605224, 2006530, 4013060, 6220243, 8026120, 12440486, 24880972, 31101215, 49761944, 62202430, 124404860, 248809720]

約数ペア:

[(1, 248809720), (2, 124404860), (4, 62202430), (5, 49761944), (8, 31101215), (10, 24880972), (20, 12440486), (31, 8026120), (40, 6220243), (62, 4013060), (124, 2006530), (155, 1605224), (163, 1526440), (248, 1003265), (310, 802612), (326, 763220), (620, 401306), (652, 381610), (815, 305288), (1231, 202120), (1240, 200653), (1304, 190805), (1630, 152644), (2462, 101060), (3260, 76322), (4924, 50530), (5053, 49240), (6155, 40424), (6520, 38161), (9848, 25265), (10106, 24620), (12310, 20212)]