89820400

素因数分解:

$2^4\times 5^2\times {\mathrm{431}}^1\times {\mathrm{521}}^1$

素因数の和:970

約数の個数: 60

約数和(自身を含む): 216709344

約数和(自身を除く): 126888944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 431, 521, 862, 1042, 1724, 2084, 2155, 2605, 3448, 4168, 4310, 5210, 6896, 8336, 8620, 10420, 10775, 13025, 17240, 20840, 21550, 26050, 34480, 41680, 43100, 52100, 86200, 104200, 172400, 208400, 224551, 449102, 898204, 1122755, 1796408, 2245510, 3592816, 4491020, 5613775, 8982040, 11227550, 17964080, 22455100, 44910200, 89820400]

約数ペア:

[(1, 89820400), (2, 44910200), (4, 22455100), (5, 17964080), (8, 11227550), (10, 8982040), (16, 5613775), (20, 4491020), (25, 3592816), (40, 2245510), (50, 1796408), (80, 1122755), (100, 898204), (200, 449102), (400, 224551), (431, 208400), (521, 172400), (862, 104200), (1042, 86200), (1724, 52100), (2084, 43100), (2155, 41680), (2605, 34480), (3448, 26050), (4168, 21550), (4310, 20840), (5210, 17240), (6896, 13025), (8336, 10775), (8620, 10420)]