20809100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16007}}^1$

素因数の和:16034

約数の個数: 36

約数和(自身を含む): 48632304

約数和(自身を除く): 27823204

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16007, 32014, 64028, 80035, 160070, 208091, 320140, 400175, 416182, 800350, 832364, 1040455, 1600700, 2080910, 4161820, 5202275, 10404550, 20809100]

約数ペア:

[(1, 20809100), (2, 10404550), (4, 5202275), (5, 4161820), (10, 2080910), (13, 1600700), (20, 1040455), (25, 832364), (26, 800350), (50, 416182), (52, 400175), (65, 320140), (100, 208091), (130, 160070), (260, 80035), (325, 64028), (650, 32014), (1300, 16007)]