155280940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{463}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 335583360

約数和(自身を除く): 180302420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 409, 410, 463, 818, 820, 926, 1636, 1852, 2045, 2315, 4090, 4630, 8180, 9260, 16769, 18983, 33538, 37966, 67076, 75932, 83845, 94915, 167690, 189367, 189830, 335380, 378734, 379660, 757468, 946835, 1893670, 3787340, 7764047, 15528094, 31056188, 38820235, 77640470, 155280940]

約数ペア:

[(1, 155280940), (2, 77640470), (4, 38820235), (5, 31056188), (10, 15528094), (20, 7764047), (41, 3787340), (82, 1893670), (164, 946835), (205, 757468), (409, 379660), (410, 378734), (463, 335380), (818, 189830), (820, 189367), (926, 167690), (1636, 94915), (1852, 83845), (2045, 75932), (2315, 67076), (4090, 37966), (4630, 33538), (8180, 18983), (9260, 16769)]