51314840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 128645280

約数和(自身を除く): 77330440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 193, 230, 289, 340, 386, 391, 460, 578, 680, 772, 782, 920, 965, 1156, 1445, 1544, 1564, 1930, 1955, 2312, 2890, 3128, 3281, 3860, 3910, 4439, 5780, 6562, 6647, 7720, 7820, 8878, 11560, 13124, 13294, 15640, 16405, 17756, 22195, 26248, 26588, 32810, 33235, 35512, 44390, 53176, 55777, 65620, 66470, 75463, 88780, 111554, 131240, 132940, 150926, 177560, 223108, 265880, 278885, 301852, 377315, 446216, 557770, 603704, 754630, 1115540, 1282871, 1509260, 2231080, 2565742, 3018520, 5131484, 6414355, 10262968, 12828710, 25657420, 51314840]

約数ペア:

[(1, 51314840), (2, 25657420), (4, 12828710), (5, 10262968), (8, 6414355), (10, 5131484), (17, 3018520), (20, 2565742), (23, 2231080), (34, 1509260), (40, 1282871), (46, 1115540), (68, 754630), (85, 603704), (92, 557770), (115, 446216), (136, 377315), (170, 301852), (184, 278885), (193, 265880), (230, 223108), (289, 177560), (340, 150926), (386, 132940), (391, 131240), (460, 111554), (578, 88780), (680, 75463), (772, 66470), (782, 65620), (920, 55777), (965, 53176), (1156, 44390), (1445, 35512), (1544, 33235), (1564, 32810), (1930, 26588), (1955, 26248), (2312, 22195), (2890, 17756), (3128, 16405), (3281, 15640), (3860, 13294), (3910, 13124), (4439, 11560), (5780, 8878), (6562, 7820), (6647, 7720)]