31317320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 75168000

約数和(自身を除く): 43850680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 463, 712, 760, 890, 926, 1691, 1780, 1852, 2315, 3382, 3560, 3704, 4630, 6764, 8455, 8797, 9260, 13528, 16910, 17594, 18520, 33820, 35188, 41207, 43985, 67640, 70376, 82414, 87970, 164828, 175940, 206035, 329656, 351880, 412070, 782933, 824140, 1565866, 1648280, 3131732, 3914665, 6263464, 7829330, 15658660, 31317320]

約数ペア:

[(1, 31317320), (2, 15658660), (4, 7829330), (5, 6263464), (8, 3914665), (10, 3131732), (19, 1648280), (20, 1565866), (38, 824140), (40, 782933), (76, 412070), (89, 351880), (95, 329656), (152, 206035), (178, 175940), (190, 164828), (356, 87970), (380, 82414), (445, 70376), (463, 67640), (712, 43985), (760, 41207), (890, 35188), (926, 33820), (1691, 18520), (1780, 17594), (1852, 16910), (2315, 13528), (3382, 9260), (3560, 8797), (3704, 8455), (4630, 6764)]