15969500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:120

約数の個数: 72

約数和(自身を含む): 37630320

約数和(自身を除く): 21660820

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 125, 164, 190, 205, 250, 380, 410, 475, 500, 779, 820, 950, 1025, 1558, 1681, 1900, 2050, 2375, 3116, 3362, 3895, 4100, 4750, 5125, 6724, 7790, 8405, 9500, 10250, 15580, 16810, 19475, 20500, 31939, 33620, 38950, 42025, 63878, 77900, 84050, 97375, 127756, 159695, 168100, 194750, 210125, 319390, 389500, 420250, 638780, 798475, 840500, 1596950, 3193900, 3992375, 7984750, 15969500]

約数ペア:

[(1, 15969500), (2, 7984750), (4, 3992375), (5, 3193900), (10, 1596950), (19, 840500), (20, 798475), (25, 638780), (38, 420250), (41, 389500), (50, 319390), (76, 210125), (82, 194750), (95, 168100), (100, 159695), (125, 127756), (164, 97375), (190, 84050), (205, 77900), (250, 63878), (380, 42025), (410, 38950), (475, 33620), (500, 31939), (779, 20500), (820, 19475), (950, 16810), (1025, 15580), (1558, 10250), (1681, 9500), (1900, 8405), (2050, 7790), (2375, 6724), (3116, 5125), (3362, 4750), (3895, 4100)]