28738540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 62614944

約数和(自身を除く): 33876404

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 202, 205, 347, 404, 410, 505, 694, 820, 1010, 1388, 1735, 2020, 3470, 4141, 6940, 8282, 14227, 16564, 20705, 28454, 35047, 41410, 56908, 70094, 71135, 82820, 140188, 142270, 175235, 284540, 350470, 700940, 1436927, 2873854, 5747708, 7184635, 14369270, 28738540]

約数ペア:

[(1, 28738540), (2, 14369270), (4, 7184635), (5, 5747708), (10, 2873854), (20, 1436927), (41, 700940), (82, 350470), (101, 284540), (164, 175235), (202, 142270), (205, 140188), (347, 82820), (404, 71135), (410, 70094), (505, 56908), (694, 41410), (820, 35047), (1010, 28454), (1388, 20705), (1735, 16564), (2020, 14227), (3470, 8282), (4141, 6940)]