78036400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 120

約数和(自身を含む): 207191600

約数和(自身を除く): 129155200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 43, 50, 52, 65, 80, 86, 100, 104, 130, 172, 200, 208, 215, 260, 325, 344, 349, 400, 430, 520, 559, 650, 688, 698, 860, 1040, 1075, 1118, 1300, 1396, 1720, 1745, 2150, 2236, 2600, 2792, 2795, 3440, 3490, 4300, 4472, 4537, 5200, 5584, 5590, 6980, 8600, 8725, 8944, 9074, 11180, 13960, 13975, 15007, 17200, 17450, 18148, 22360, 22685, 27920, 27950, 30014, 34900, 36296, 44720, 45370, 55900, 60028, 69800, 72592, 75035, 90740, 111800, 113425, 120056, 139600, 150070, 181480, 195091, 223600, 226850, 240112, 300140, 362960, 375175, 390182, 453700, 600280, 750350, 780364, 907400, 975455, 1200560, 1500700, 1560728, 1814800, 1950910, 3001400, 3121456, 3901820, 4877275, 6002800, 7803640, 9754550, 15607280, 19509100, 39018200, 78036400]

約数ペア:

[(1, 78036400), (2, 39018200), (4, 19509100), (5, 15607280), (8, 9754550), (10, 7803640), (13, 6002800), (16, 4877275), (20, 3901820), (25, 3121456), (26, 3001400), (40, 1950910), (43, 1814800), (50, 1560728), (52, 1500700), (65, 1200560), (80, 975455), (86, 907400), (100, 780364), (104, 750350), (130, 600280), (172, 453700), (200, 390182), (208, 375175), (215, 362960), (260, 300140), (325, 240112), (344, 226850), (349, 223600), (400, 195091), (430, 181480), (520, 150070), (559, 139600), (650, 120056), (688, 113425), (698, 111800), (860, 90740), (1040, 75035), (1075, 72592), (1118, 69800), (1300, 60028), (1396, 55900), (1720, 45370), (1745, 44720), (2150, 36296), (2236, 34900), (2600, 30014), (2792, 27950), (2795, 27920), (3440, 22685), (3490, 22360), (4300, 18148), (4472, 17450), (4537, 17200), (5200, 15007), (5584, 13975), (5590, 13960), (6980, 11180), (8600, 9074), (8725, 8944)]