19591480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 47744640

約数和(自身を除く): 28153160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 613, 680, 799, 940, 1226, 1598, 1880, 2452, 3065, 3196, 3995, 4904, 6130, 6392, 7990, 10421, 12260, 15980, 20842, 24520, 28811, 31960, 41684, 52105, 57622, 83368, 104210, 115244, 144055, 208420, 230488, 288110, 416840, 489787, 576220, 979574, 1152440, 1959148, 2448935, 3918296, 4897870, 9795740, 19591480]

約数ペア:

[(1, 19591480), (2, 9795740), (4, 4897870), (5, 3918296), (8, 2448935), (10, 1959148), (17, 1152440), (20, 979574), (34, 576220), (40, 489787), (47, 416840), (68, 288110), (85, 230488), (94, 208420), (136, 144055), (170, 115244), (188, 104210), (235, 83368), (340, 57622), (376, 52105), (470, 41684), (613, 31960), (680, 28811), (799, 24520), (940, 20842), (1226, 15980), (1598, 12260), (1880, 10421), (2452, 7990), (3065, 6392), (3196, 6130), (3995, 4904)]