129378620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{132019}}^1$

素因数の和:132042

約数の個数: 36

約数和(自身を含む): 316055880

約数和(自身を除く): 186677260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 132019, 264038, 528076, 660095, 924133, 1320190, 1848266, 2640380, 3696532, 4620665, 6468931, 9241330, 12937862, 18482660, 25875724, 32344655, 64689310, 129378620]

約数ペア:

[(1, 129378620), (2, 64689310), (4, 32344655), (5, 25875724), (7, 18482660), (10, 12937862), (14, 9241330), (20, 6468931), (28, 4620665), (35, 3696532), (49, 2640380), (70, 1848266), (98, 1320190), (140, 924133), (196, 660095), (245, 528076), (490, 264038), (980, 132019)]