129781540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4157}}^1$

素因数の和:4396

約数の個数: 48

約数和(自身を含む): 312947712

約数和(自身を除く): 183166172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1561, 2230, 3122, 4157, 4460, 6244, 7805, 8314, 15610, 16628, 20785, 29099, 31220, 41570, 58198, 83140, 116396, 145495, 290990, 581980, 927011, 1854022, 3708044, 4635055, 6489077, 9270110, 12978154, 18540220, 25956308, 32445385, 64890770, 129781540]

約数ペア:

[(1, 129781540), (2, 64890770), (4, 32445385), (5, 25956308), (7, 18540220), (10, 12978154), (14, 9270110), (20, 6489077), (28, 4635055), (35, 3708044), (70, 1854022), (140, 927011), (223, 581980), (446, 290990), (892, 145495), (1115, 116396), (1561, 83140), (2230, 58198), (3122, 41570), (4157, 31220), (4460, 29099), (6244, 20785), (7805, 16628), (8314, 15610)]