12846980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 28062720

約数和(自身を除く): 15215740

約数列:

[1, 2, 4, 5, 10, 20, 47, 79, 94, 158, 173, 188, 235, 316, 346, 395, 470, 692, 790, 865, 940, 1580, 1730, 3460, 3713, 7426, 8131, 13667, 14852, 16262, 18565, 27334, 32524, 37130, 40655, 54668, 68335, 74260, 81310, 136670, 162620, 273340, 642349, 1284698, 2569396, 3211745, 6423490, 12846980]

約数ペア:

[(1, 12846980), (2, 6423490), (4, 3211745), (5, 2569396), (10, 1284698), (20, 642349), (47, 273340), (79, 162620), (94, 136670), (158, 81310), (173, 74260), (188, 68335), (235, 54668), (316, 40655), (346, 37130), (395, 32524), (470, 27334), (692, 18565), (790, 16262), (865, 14852), (940, 13667), (1580, 8131), (1730, 7426), (3460, 3713)]