388900580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{15299}}^1$

素因数の和:15380

約数の個数: 48

約数和(自身を含む): 863654400

約数和(自身を除く): 474753820

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 5084, 6355, 12710, 15299, 25420, 30598, 61196, 76495, 152990, 305980, 474269, 627259, 948538, 1254518, 1897076, 2371345, 2509036, 3136295, 4742690, 6272590, 9485380, 12545180, 19445029, 38890058, 77780116, 97225145, 194450290, 388900580]

約数ペア:

[(1, 388900580), (2, 194450290), (4, 97225145), (5, 77780116), (10, 38890058), (20, 19445029), (31, 12545180), (41, 9485380), (62, 6272590), (82, 4742690), (124, 3136295), (155, 2509036), (164, 2371345), (205, 1897076), (310, 1254518), (410, 948538), (620, 627259), (820, 474269), (1271, 305980), (2542, 152990), (5084, 76495), (6355, 61196), (12710, 30598), (15299, 25420)]