1243165720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1002553}}^1$

素因数の和:1002595

約数の個数: 32

約数和(自身を含む): 2887355520

約数和(自身を除く): 1644189800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1002553, 2005106, 4010212, 5012765, 8020424, 10025530, 20051060, 31079143, 40102120, 62158286, 124316572, 155395715, 248633144, 310791430, 621582860, 1243165720]

約数ペア:

[(1, 1243165720), (2, 621582860), (4, 310791430), (5, 248633144), (8, 155395715), (10, 124316572), (20, 62158286), (31, 40102120), (40, 31079143), (62, 20051060), (124, 10025530), (155, 8020424), (248, 5012765), (310, 4010212), (620, 2005106), (1240, 1002553)]