2080504240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{838913}}^1$

素因数の和:838957

約数の個数: 40

約数和(自身を含む): 4993216128

約数和(自身を除く): 2912711888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 838913, 1677826, 3355652, 4194565, 6711304, 8389130, 13422608, 16778260, 26006303, 33556520, 52012606, 67113040, 104025212, 130031515, 208050424, 260063030, 416100848, 520126060, 1040252120, 2080504240]

約数ペア:

[(1, 2080504240), (2, 1040252120), (4, 520126060), (5, 416100848), (8, 260063030), (10, 208050424), (16, 130031515), (20, 104025212), (31, 67113040), (40, 52012606), (62, 33556520), (80, 26006303), (124, 16778260), (155, 13422608), (248, 8389130), (310, 6711304), (496, 4194565), (620, 3355652), (1240, 1677826), (2480, 838913)]