8202780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 25116000

約数和(自身を除く): 16913220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 229, 398, 458, 597, 687, 796, 916, 995, 1145, 1194, 1374, 1791, 1990, 2061, 2290, 2388, 2748, 2985, 3435, 3582, 3980, 4122, 4580, 5970, 6870, 7164, 8244, 8955, 10305, 11940, 13740, 17910, 20610, 35820, 41220, 45571, 91142, 136713, 182284, 227855, 273426, 410139, 455710, 546852, 683565, 820278, 911420, 1367130, 1640556, 2050695, 2734260, 4101390, 8202780]

約数ペア:

[(1, 8202780), (2, 4101390), (3, 2734260), (4, 2050695), (5, 1640556), (6, 1367130), (9, 911420), (10, 820278), (12, 683565), (15, 546852), (18, 455710), (20, 410139), (30, 273426), (36, 227855), (45, 182284), (60, 136713), (90, 91142), (180, 45571), (199, 41220), (229, 35820), (398, 20610), (458, 17910), (597, 13740), (687, 11940), (796, 10305), (916, 8955), (995, 8244), (1145, 7164), (1194, 6870), (1374, 5970), (1791, 4580), (1990, 4122), (2061, 3980), (2290, 3582), (2388, 3435), (2748, 2985)]