80176740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{27271}}^1$

素因数の和:27297

約数の個数: 72

約数和(自身を含む): 261156672

約数和(自身を除く): 180979932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 27271, 54542, 81813, 109084, 136355, 163626, 190897, 272710, 327252, 381794, 409065, 545420, 572691, 763588, 818130, 954485, 1145382, 1336279, 1636260, 1908970, 2290764, 2672558, 2863455, 3817940, 4008837, 5345116, 5726910, 6681395, 8017674, 11453820, 13362790, 16035348, 20044185, 26725580, 40088370, 80176740]

約数ペア:

[(1, 80176740), (2, 40088370), (3, 26725580), (4, 20044185), (5, 16035348), (6, 13362790), (7, 11453820), (10, 8017674), (12, 6681395), (14, 5726910), (15, 5345116), (20, 4008837), (21, 3817940), (28, 2863455), (30, 2672558), (35, 2290764), (42, 1908970), (49, 1636260), (60, 1336279), (70, 1145382), (84, 954485), (98, 818130), (105, 763588), (140, 572691), (147, 545420), (196, 409065), (210, 381794), (245, 327252), (294, 272710), (420, 190897), (490, 163626), (588, 136355), (735, 109084), (980, 81813), (1470, 54542), (2940, 27271)]