279404240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112663}}^1$

素因数の和:112707

約数の個数: 40

約数和(自身を含む): 670576128

約数和(自身を除く): 391171888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 112663, 225326, 450652, 563315, 901304, 1126630, 1802608, 2253260, 3492553, 4506520, 6985106, 9013040, 13970212, 17462765, 27940424, 34925530, 55880848, 69851060, 139702120, 279404240]

約数ペア:

[(1, 279404240), (2, 139702120), (4, 69851060), (5, 55880848), (8, 34925530), (10, 27940424), (16, 17462765), (20, 13970212), (31, 9013040), (40, 6985106), (62, 4506520), (80, 3492553), (124, 2253260), (155, 1802608), (248, 1126630), (310, 901304), (496, 563315), (620, 450652), (1240, 225326), (2480, 112663)]