1918540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 4459392

約数和(自身を除く): 2540852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 157, 188, 235, 260, 314, 470, 611, 628, 785, 940, 1222, 1570, 2041, 2444, 3055, 3140, 4082, 6110, 7379, 8164, 10205, 12220, 14758, 20410, 29516, 36895, 40820, 73790, 95927, 147580, 191854, 383708, 479635, 959270, 1918540]

約数ペア:

[(1, 1918540), (2, 959270), (4, 479635), (5, 383708), (10, 191854), (13, 147580), (20, 95927), (26, 73790), (47, 40820), (52, 36895), (65, 29516), (94, 20410), (130, 14758), (157, 12220), (188, 10205), (235, 8164), (260, 7379), (314, 6110), (470, 4082), (611, 3140), (628, 3055), (785, 2444), (940, 2041), (1222, 1570)]