131144240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39983}}^1$

素因数の和:40037

約数の個数: 40

約数和(自身を含む): 312355008

約数和(自身を除く): 181210768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 39983, 79966, 159932, 199915, 319864, 399830, 639728, 799660, 1599320, 1639303, 3198640, 3278606, 6557212, 8196515, 13114424, 16393030, 26228848, 32786060, 65572120, 131144240]

約数ペア:

[(1, 131144240), (2, 65572120), (4, 32786060), (5, 26228848), (8, 16393030), (10, 13114424), (16, 8196515), (20, 6557212), (40, 3278606), (41, 3198640), (80, 1639303), (82, 1599320), (164, 799660), (205, 639728), (328, 399830), (410, 319864), (656, 199915), (820, 159932), (1640, 79966), (3280, 39983)]