221521680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{307669}}^1$

素因数の和:307688

約数の個数: 60

約数和(自身を含む): 743946060

約数和(自身を除く): 522424380

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 307669, 615338, 923007, 1230676, 1538345, 1846014, 2461352, 2769021, 3076690, 3692028, 4615035, 4922704, 5538042, 6153380, 7384056, 9230070, 11076084, 12306760, 13845105, 14768112, 18460140, 22152168, 24613520, 27690210, 36920280, 44304336, 55380420, 73840560, 110760840, 221521680]

約数ペア:

[(1, 221521680), (2, 110760840), (3, 73840560), (4, 55380420), (5, 44304336), (6, 36920280), (8, 27690210), (9, 24613520), (10, 22152168), (12, 18460140), (15, 14768112), (16, 13845105), (18, 12306760), (20, 11076084), (24, 9230070), (30, 7384056), (36, 6153380), (40, 5538042), (45, 4922704), (48, 4615035), (60, 3692028), (72, 3076690), (80, 2769021), (90, 2461352), (120, 1846014), (144, 1538345), (180, 1230676), (240, 923007), (360, 615338), (720, 307669)]