11913800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 28123200

約数和(自身を除く): 16209400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 839, 1420, 1678, 1775, 2840, 3356, 3550, 4195, 6712, 7100, 8390, 14200, 16780, 20975, 33560, 41950, 59569, 83900, 119138, 167800, 238276, 297845, 476552, 595690, 1191380, 1489225, 2382760, 2978450, 5956900, 11913800]

約数ペア:

[(1, 11913800), (2, 5956900), (4, 2978450), (5, 2382760), (8, 1489225), (10, 1191380), (20, 595690), (25, 476552), (40, 297845), (50, 238276), (71, 167800), (100, 119138), (142, 83900), (200, 59569), (284, 41950), (355, 33560), (568, 20975), (710, 16780), (839, 14200), (1420, 8390), (1678, 7100), (1775, 6712), (2840, 4195), (3356, 3550)]