28813373380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{198139}}^1$

素因数の和:198820

約数の個数: 48

約数和(自身を含む): 66109014720

約数和(自身を除く): 37295641340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 661, 1322, 2644, 3305, 6610, 7271, 13220, 14542, 29084, 36355, 72710, 145420, 198139, 396278, 792556, 990695, 1981390, 2179529, 3962780, 4359058, 8718116, 10897645, 21795290, 43590580, 130969879, 261939758, 523879516, 654849395, 1309698790, 1440668669, 2619397580, 2881337338, 5762674676, 7203343345, 14406686690, 28813373380]

約数ペア:

[(1, 28813373380), (2, 14406686690), (4, 7203343345), (5, 5762674676), (10, 2881337338), (11, 2619397580), (20, 1440668669), (22, 1309698790), (44, 654849395), (55, 523879516), (110, 261939758), (220, 130969879), (661, 43590580), (1322, 21795290), (2644, 10897645), (3305, 8718116), (6610, 4359058), (7271, 3962780), (13220, 2179529), (14542, 1981390), (29084, 990695), (36355, 792556), (72710, 396278), (145420, 198139)]