19979004

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 49280000

約数和(自身を除く): 29300996

約数列:

[1, 2, 3, 4, 6, 12, 31, 43, 62, 86, 93, 124, 129, 172, 186, 258, 372, 516, 1249, 1333, 2498, 2666, 3747, 3999, 4996, 5332, 7494, 7998, 14988, 15996, 38719, 53707, 77438, 107414, 116157, 154876, 161121, 214828, 232314, 322242, 464628, 644484, 1664917, 3329834, 4994751, 6659668, 9989502, 19979004]

約数ペア:

[(1, 19979004), (2, 9989502), (3, 6659668), (4, 4994751), (6, 3329834), (12, 1664917), (31, 644484), (43, 464628), (62, 322242), (86, 232314), (93, 214828), (124, 161121), (129, 154876), (172, 116157), (186, 107414), (258, 77438), (372, 53707), (516, 38719), (1249, 15996), (1333, 14988), (2498, 7998), (2666, 7494), (3747, 5332), (3999, 4996)]