255784240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{77983}}^1$

素因数の和:78037

約数の個数: 40

約数和(自身を含む): 609211008

約数和(自身を除く): 353426768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 77983, 155966, 311932, 389915, 623864, 779830, 1247728, 1559660, 3119320, 3197303, 6238640, 6394606, 12789212, 15986515, 25578424, 31973030, 51156848, 63946060, 127892120, 255784240]

約数ペア:

[(1, 255784240), (2, 127892120), (4, 63946060), (5, 51156848), (8, 31973030), (10, 25578424), (16, 15986515), (20, 12789212), (40, 6394606), (41, 6238640), (80, 3197303), (82, 3119320), (164, 1559660), (205, 1247728), (328, 779830), (410, 623864), (656, 389915), (820, 311932), (1640, 155966), (3280, 77983)]