228889780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{311}}^1\times {\mathrm{751}}^1$

素因数の和:1085

約数の個数: 72

約数和(自身を含む): 561689856

約数和(自身を除く): 332800076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 311, 490, 622, 751, 980, 1244, 1502, 1555, 2177, 3004, 3110, 3755, 4354, 5257, 6220, 7510, 8708, 10514, 10885, 15020, 15239, 21028, 21770, 26285, 30478, 36799, 43540, 52570, 60956, 73598, 76195, 105140, 147196, 152390, 183995, 233561, 304780, 367990, 467122, 735980, 934244, 1167805, 1634927, 2335610, 3269854, 4671220, 6539708, 8174635, 11444489, 16349270, 22888978, 32698540, 45777956, 57222445, 114444890, 228889780]

約数ペア:

[(1, 228889780), (2, 114444890), (4, 57222445), (5, 45777956), (7, 32698540), (10, 22888978), (14, 16349270), (20, 11444489), (28, 8174635), (35, 6539708), (49, 4671220), (70, 3269854), (98, 2335610), (140, 1634927), (196, 1167805), (245, 934244), (311, 735980), (490, 467122), (622, 367990), (751, 304780), (980, 233561), (1244, 183995), (1502, 152390), (1555, 147196), (2177, 105140), (3004, 76195), (3110, 73598), (3755, 60956), (4354, 52570), (5257, 43540), (6220, 36799), (7510, 30478), (8708, 26285), (10514, 21770), (10885, 21028), (15020, 15239)]