20147102780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{409}}^1\times {\mathrm{1063}}^1$

素因数の和:1819

約数の個数: 96

約数和(自身を含む): 48663444480

約数和(自身を除く): 28516341700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 409, 662, 818, 1063, 1324, 1636, 1655, 2045, 2126, 2317, 2863, 3310, 4090, 4252, 4634, 5315, 5726, 6620, 7441, 8180, 9268, 10630, 11452, 11585, 14315, 14882, 21260, 23170, 28630, 29764, 37205, 46340, 57260, 74410, 135379, 148820, 270758, 351853, 434767, 541516, 676895, 703706, 869534, 947653, 1353790, 1407412, 1739068, 1759265, 1895306, 2173835, 2462971, 2707580, 3043369, 3518530, 3790612, 4347670, 4738265, 4925942, 6086738, 7037060, 8695340, 9476530, 9851884, 12173476, 12314855, 15216845, 18953060, 24629710, 30433690, 49259420, 60867380, 143907877, 287815754, 575631508, 719539385, 1007355139, 1439078770, 2014710278, 2878157540, 4029420556, 5036775695, 10073551390, 20147102780]

約数ペア:

[(1, 20147102780), (2, 10073551390), (4, 5036775695), (5, 4029420556), (7, 2878157540), (10, 2014710278), (14, 1439078770), (20, 1007355139), (28, 719539385), (35, 575631508), (70, 287815754), (140, 143907877), (331, 60867380), (409, 49259420), (662, 30433690), (818, 24629710), (1063, 18953060), (1324, 15216845), (1636, 12314855), (1655, 12173476), (2045, 9851884), (2126, 9476530), (2317, 8695340), (2863, 7037060), (3310, 6086738), (4090, 4925942), (4252, 4738265), (4634, 4347670), (5315, 3790612), (5726, 3518530), (6620, 3043369), (7441, 2707580), (8180, 2462971), (9268, 2173835), (10630, 1895306), (11452, 1759265), (11585, 1739068), (14315, 1407412), (14882, 1353790), (21260, 947653), (23170, 869534), (28630, 703706), (29764, 676895), (37205, 541516), (46340, 434767), (57260, 351853), (74410, 270758), (135379, 148820)]