20805012

素因数分解:

$2^2\times 3^4\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:582

約数の個数: 60

約数和(自身を含む): 54868660

約数和(自身を除く): 34063648

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 157, 162, 314, 324, 409, 471, 628, 818, 942, 1227, 1413, 1636, 1884, 2454, 2826, 3681, 4239, 4908, 5652, 7362, 8478, 11043, 12717, 14724, 16956, 22086, 25434, 33129, 44172, 50868, 64213, 66258, 128426, 132516, 192639, 256852, 385278, 577917, 770556, 1155834, 1733751, 2311668, 3467502, 5201253, 6935004, 10402506, 20805012]

約数ペア:

[(1, 20805012), (2, 10402506), (3, 6935004), (4, 5201253), (6, 3467502), (9, 2311668), (12, 1733751), (18, 1155834), (27, 770556), (36, 577917), (54, 385278), (81, 256852), (108, 192639), (157, 132516), (162, 128426), (314, 66258), (324, 64213), (409, 50868), (471, 44172), (628, 33129), (818, 25434), (942, 22086), (1227, 16956), (1413, 14724), (1636, 12717), (1884, 11043), (2454, 8478), (2826, 7362), (3681, 5652), (4239, 4908)]