19970600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7681}}^1$

素因数の和:7710

約数の個数: 48

約数和(自身を含む): 50009820

約数和(自身を除く): 30039220

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7681, 15362, 30724, 38405, 61448, 76810, 99853, 153620, 192025, 199706, 307240, 384050, 399412, 499265, 768100, 798824, 998530, 1536200, 1997060, 2496325, 3994120, 4992650, 9985300, 19970600]

約数ペア:

[(1, 19970600), (2, 9985300), (4, 4992650), (5, 3994120), (8, 2496325), (10, 1997060), (13, 1536200), (20, 998530), (25, 798824), (26, 768100), (40, 499265), (50, 399412), (52, 384050), (65, 307240), (100, 199706), (104, 192025), (130, 153620), (200, 99853), (260, 76810), (325, 61448), (520, 38405), (650, 30724), (1300, 15362), (2600, 7681)]