2080720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:883

約数の個数: 40

約数和(自身を含む): 4999680

約数和(自身を除く): 2918960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 839, 1240, 1678, 2480, 3356, 4195, 6712, 8390, 13424, 16780, 26009, 33560, 52018, 67120, 104036, 130045, 208072, 260090, 416144, 520180, 1040360, 2080720]

約数ペア:

[(1, 2080720), (2, 1040360), (4, 520180), (5, 416144), (8, 260090), (10, 208072), (16, 130045), (20, 104036), (31, 67120), (40, 52018), (62, 33560), (80, 26009), (124, 16780), (155, 13424), (248, 8390), (310, 6712), (496, 4195), (620, 3356), (839, 2480), (1240, 1678)]