638621460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{15493}}^1$

素因数の和:15737

約数の個数: 72

約数和(自身を含む): 1945736520

約数和(自身を除く): 1307115060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 687, 916, 1145, 1374, 2061, 2290, 2748, 3435, 4122, 4580, 6870, 8244, 10305, 13740, 15493, 20610, 30986, 41220, 46479, 61972, 77465, 92958, 139437, 154930, 185916, 232395, 278874, 309860, 464790, 557748, 697185, 929580, 1394370, 2788740, 3547897, 7095794, 10643691, 14191588, 17739485, 21287382, 31931073, 35478970, 42574764, 53218455, 63862146, 70957940, 106436910, 127724292, 159655365, 212873820, 319310730, 638621460]

約数ペア:

[(1, 638621460), (2, 319310730), (3, 212873820), (4, 159655365), (5, 127724292), (6, 106436910), (9, 70957940), (10, 63862146), (12, 53218455), (15, 42574764), (18, 35478970), (20, 31931073), (30, 21287382), (36, 17739485), (45, 14191588), (60, 10643691), (90, 7095794), (180, 3547897), (229, 2788740), (458, 1394370), (687, 929580), (916, 697185), (1145, 557748), (1374, 464790), (2061, 309860), (2290, 278874), (2748, 232395), (3435, 185916), (4122, 154930), (4580, 139437), (6870, 92958), (8244, 77465), (10305, 61972), (13740, 46479), (15493, 41220), (20610, 30986)]