20050986

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 44605440

約数和(自身を除く): 24554454

約数列:

[1, 2, 3, 6, 23, 31, 43, 46, 62, 69, 86, 93, 109, 129, 138, 186, 218, 258, 327, 654, 713, 989, 1333, 1426, 1978, 2139, 2507, 2666, 2967, 3379, 3999, 4278, 4687, 5014, 5934, 6758, 7521, 7998, 9374, 10137, 14061, 15042, 20274, 28122, 30659, 61318, 77717, 91977, 107801, 145297, 155434, 183954, 215602, 233151, 290594, 323403, 435891, 466302, 646806, 871782, 3341831, 6683662, 10025493, 20050986]

約数ペア:

[(1, 20050986), (2, 10025493), (3, 6683662), (6, 3341831), (23, 871782), (31, 646806), (43, 466302), (46, 435891), (62, 323403), (69, 290594), (86, 233151), (93, 215602), (109, 183954), (129, 155434), (138, 145297), (186, 107801), (218, 91977), (258, 77717), (327, 61318), (654, 30659), (713, 28122), (989, 20274), (1333, 15042), (1426, 14061), (1978, 10137), (2139, 9374), (2507, 7998), (2666, 7521), (2967, 6758), (3379, 5934), (3999, 5014), (4278, 4687)]