31182040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 74844000

約数和(自身を除く): 43661960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 461, 712, 760, 890, 922, 1691, 1780, 1844, 2305, 3382, 3560, 3688, 4610, 6764, 8455, 8759, 9220, 13528, 16910, 17518, 18440, 33820, 35036, 41029, 43795, 67640, 70072, 82058, 87590, 164116, 175180, 205145, 328232, 350360, 410290, 779551, 820580, 1559102, 1641160, 3118204, 3897755, 6236408, 7795510, 15591020, 31182040]

約数ペア:

[(1, 31182040), (2, 15591020), (4, 7795510), (5, 6236408), (8, 3897755), (10, 3118204), (19, 1641160), (20, 1559102), (38, 820580), (40, 779551), (76, 410290), (89, 350360), (95, 328232), (152, 205145), (178, 175180), (190, 164116), (356, 87590), (380, 82058), (445, 70072), (461, 67640), (712, 43795), (760, 41029), (890, 35036), (922, 33820), (1691, 18440), (1780, 17518), (1844, 16910), (2305, 13528), (3382, 9220), (3560, 8759), (3688, 8455), (4610, 6764)]