250619980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{20509}}^1$

素因数の和:20578

約数の個数: 48

約数和(自身を含む): 578874240

約数和(自身を除く): 328254260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 12220, 20509, 41018, 82036, 102545, 205090, 266617, 410180, 533234, 963923, 1066468, 1333085, 1927846, 2666170, 3855692, 4819615, 5332340, 9639230, 12530999, 19278460, 25061998, 50123996, 62654995, 125309990, 250619980]

約数ペア:

[(1, 250619980), (2, 125309990), (4, 62654995), (5, 50123996), (10, 25061998), (13, 19278460), (20, 12530999), (26, 9639230), (47, 5332340), (52, 4819615), (65, 3855692), (94, 2666170), (130, 1927846), (188, 1333085), (235, 1066468), (260, 963923), (470, 533234), (611, 410180), (940, 266617), (1222, 205090), (2444, 102545), (3055, 82036), (6110, 41018), (12220, 20509)]