172960990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{2293}}^1$

素因数の和:2716

約数の個数: 32

約数和(自身を含む): 328684320

約数和(自身を除く): 155723330

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 397, 794, 1985, 2293, 3970, 4586, 7543, 11465, 15086, 22930, 37715, 43567, 75430, 87134, 217835, 435670, 910321, 1820642, 4551605, 9103210, 17296099, 34592198, 86480495, 172960990]

約数ペア:

[(1, 172960990), (2, 86480495), (5, 34592198), (10, 17296099), (19, 9103210), (38, 4551605), (95, 1820642), (190, 910321), (397, 435670), (794, 217835), (1985, 87134), (2293, 75430), (3970, 43567), (4586, 37715), (7543, 22930), (11465, 15086)]