90642280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:554

約数の個数: 64

約数和(自身を含む): 210672000

約数和(自身を除く): 120029720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 151, 172, 215, 302, 344, 349, 430, 604, 698, 755, 860, 1208, 1396, 1510, 1720, 1745, 2792, 3020, 3490, 6040, 6493, 6980, 12986, 13960, 15007, 25972, 30014, 32465, 51944, 52699, 60028, 64930, 75035, 105398, 120056, 129860, 150070, 210796, 259720, 263495, 300140, 421592, 526990, 600280, 1053980, 2107960, 2266057, 4532114, 9064228, 11330285, 18128456, 22660570, 45321140, 90642280]

約数ペア:

[(1, 90642280), (2, 45321140), (4, 22660570), (5, 18128456), (8, 11330285), (10, 9064228), (20, 4532114), (40, 2266057), (43, 2107960), (86, 1053980), (151, 600280), (172, 526990), (215, 421592), (302, 300140), (344, 263495), (349, 259720), (430, 210796), (604, 150070), (698, 129860), (755, 120056), (860, 105398), (1208, 75035), (1396, 64930), (1510, 60028), (1720, 52699), (1745, 51944), (2792, 32465), (3020, 30014), (3490, 25972), (6040, 15007), (6493, 13960), (6980, 12986)]