1815142760

素因数分解:

$2^3\times 5^1\times {\mathrm{2371}}^1\times {\mathrm{19139}}^1$

素因数の和:21521

約数の個数: 32

約数和(自身を含む): 4086007200

約数和(自身を除く): 2270864440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2371, 4742, 9484, 11855, 18968, 19139, 23710, 38278, 47420, 76556, 94840, 95695, 153112, 191390, 382780, 765560, 45378569, 90757138, 181514276, 226892845, 363028552, 453785690, 907571380, 1815142760]

約数ペア:

[(1, 1815142760), (2, 907571380), (4, 453785690), (5, 363028552), (8, 226892845), (10, 181514276), (20, 90757138), (40, 45378569), (2371, 765560), (4742, 382780), (9484, 191390), (11855, 153112), (18968, 95695), (19139, 94840), (23710, 76556), (38278, 47420)]