31214560

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 81496800

約数和(自身を除く): 50282240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 65, 80, 86, 104, 130, 160, 172, 208, 215, 260, 344, 349, 416, 430, 520, 559, 688, 698, 860, 1040, 1118, 1376, 1396, 1720, 1745, 2080, 2236, 2792, 2795, 3440, 3490, 4472, 4537, 5584, 5590, 6880, 6980, 8944, 9074, 11168, 11180, 13960, 15007, 17888, 18148, 22360, 22685, 27920, 30014, 36296, 44720, 45370, 55840, 60028, 72592, 75035, 89440, 90740, 120056, 145184, 150070, 181480, 195091, 240112, 300140, 362960, 390182, 480224, 600280, 725920, 780364, 975455, 1200560, 1560728, 1950910, 2401120, 3121456, 3901820, 6242912, 7803640, 15607280, 31214560]

約数ペア:

[(1, 31214560), (2, 15607280), (4, 7803640), (5, 6242912), (8, 3901820), (10, 3121456), (13, 2401120), (16, 1950910), (20, 1560728), (26, 1200560), (32, 975455), (40, 780364), (43, 725920), (52, 600280), (65, 480224), (80, 390182), (86, 362960), (104, 300140), (130, 240112), (160, 195091), (172, 181480), (208, 150070), (215, 145184), (260, 120056), (344, 90740), (349, 89440), (416, 75035), (430, 72592), (520, 60028), (559, 55840), (688, 45370), (698, 44720), (860, 36296), (1040, 30014), (1118, 27920), (1376, 22685), (1396, 22360), (1720, 18148), (1745, 17888), (2080, 15007), (2236, 13960), (2792, 11180), (2795, 11168), (3440, 9074), (3490, 8944), (4472, 6980), (4537, 6880), (5584, 5590)]