78897860

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{607}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 170171904

約数和(自身を除く): 91274044

約数列:

[1, 2, 4, 5, 10, 20, 67, 97, 134, 194, 268, 335, 388, 485, 607, 670, 970, 1214, 1340, 1940, 2428, 3035, 6070, 6499, 12140, 12998, 25996, 32495, 40669, 58879, 64990, 81338, 117758, 129980, 162676, 203345, 235516, 294395, 406690, 588790, 813380, 1177580, 3944893, 7889786, 15779572, 19724465, 39448930, 78897860]

約数ペア:

[(1, 78897860), (2, 39448930), (4, 19724465), (5, 15779572), (10, 7889786), (20, 3944893), (67, 1177580), (97, 813380), (134, 588790), (194, 406690), (268, 294395), (335, 235516), (388, 203345), (485, 162676), (607, 129980), (670, 117758), (970, 81338), (1214, 64990), (1340, 58879), (1940, 40669), (2428, 32495), (3035, 25996), (6070, 12998), (6499, 12140)]