20541930256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{414553}}^1$

素因数の和:414743

約数の個数: 40

約数和(自身を含む): 42151850720

約数和(自身を除く): 21609920464

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 163, 304, 326, 652, 1304, 2608, 3097, 6194, 12388, 24776, 49552, 414553, 829106, 1658212, 3316424, 6632848, 7876507, 15753014, 31506028, 63012056, 67572139, 126024112, 135144278, 270288556, 540577112, 1081154224, 1283870641, 2567741282, 5135482564, 10270965128, 20541930256]

約数ペア:

[(1, 20541930256), (2, 10270965128), (4, 5135482564), (8, 2567741282), (16, 1283870641), (19, 1081154224), (38, 540577112), (76, 270288556), (152, 135144278), (163, 126024112), (304, 67572139), (326, 63012056), (652, 31506028), (1304, 15753014), (2608, 7876507), (3097, 6632848), (6194, 3316424), (12388, 1658212), (24776, 829106), (49552, 414553)]