19850520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3847}}^1$

素因数の和:3904

約数の個数: 64

約数和(自身を含む): 60952320

約数和(自身を除く): 41101800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3847, 5160, 7694, 11541, 15388, 19235, 23082, 30776, 38470, 46164, 57705, 76940, 92328, 115410, 153880, 165421, 230820, 330842, 461640, 496263, 661684, 827105, 992526, 1323368, 1654210, 1985052, 2481315, 3308420, 3970104, 4962630, 6616840, 9925260, 19850520]

約数ペア:

[(1, 19850520), (2, 9925260), (3, 6616840), (4, 4962630), (5, 3970104), (6, 3308420), (8, 2481315), (10, 1985052), (12, 1654210), (15, 1323368), (20, 992526), (24, 827105), (30, 661684), (40, 496263), (43, 461640), (60, 330842), (86, 230820), (120, 165421), (129, 153880), (172, 115410), (215, 92328), (258, 76940), (344, 57705), (430, 46164), (516, 38470), (645, 30776), (860, 23082), (1032, 19235), (1290, 15388), (1720, 11541), (2580, 7694), (3847, 5160)]