16286780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 35777280

約数和(自身を除く): 19490500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 241, 310, 436, 482, 545, 620, 964, 1090, 1205, 2180, 2410, 3379, 4820, 6758, 7471, 13516, 14942, 16895, 26269, 29884, 33790, 37355, 52538, 67580, 74710, 105076, 131345, 149420, 262690, 525380, 814339, 1628678, 3257356, 4071695, 8143390, 16286780]

約数ペア:

[(1, 16286780), (2, 8143390), (4, 4071695), (5, 3257356), (10, 1628678), (20, 814339), (31, 525380), (62, 262690), (109, 149420), (124, 131345), (155, 105076), (218, 74710), (241, 67580), (310, 52538), (436, 37355), (482, 33790), (545, 29884), (620, 26269), (964, 16895), (1090, 14942), (1205, 13516), (2180, 7471), (2410, 6758), (3379, 4820)]