128507640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:549

約数の個数: 128

約数和(自身を含む): 409536000

約数和(自身を除く): 281028360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 157, 190, 228, 285, 314, 359, 380, 456, 471, 570, 628, 718, 760, 785, 942, 1077, 1140, 1256, 1436, 1570, 1795, 1884, 2154, 2280, 2355, 2872, 2983, 3140, 3590, 3768, 4308, 4710, 5385, 5966, 6280, 6821, 7180, 8616, 8949, 9420, 10770, 11932, 13642, 14360, 14915, 17898, 18840, 20463, 21540, 23864, 27284, 29830, 34105, 35796, 40926, 43080, 44745, 54568, 56363, 59660, 68210, 71592, 81852, 89490, 102315, 112726, 119320, 136420, 163704, 169089, 178980, 204630, 225452, 272840, 281815, 338178, 357960, 409260, 450904, 563630, 676356, 818520, 845445, 1070897, 1127260, 1352712, 1690890, 2141794, 2254520, 3212691, 3381780, 4283588, 5354485, 6425382, 6763560, 8567176, 10708970, 12850764, 16063455, 21417940, 25701528, 32126910, 42835880, 64253820, 128507640]

約数ペア:

[(1, 128507640), (2, 64253820), (3, 42835880), (4, 32126910), (5, 25701528), (6, 21417940), (8, 16063455), (10, 12850764), (12, 10708970), (15, 8567176), (19, 6763560), (20, 6425382), (24, 5354485), (30, 4283588), (38, 3381780), (40, 3212691), (57, 2254520), (60, 2141794), (76, 1690890), (95, 1352712), (114, 1127260), (120, 1070897), (152, 845445), (157, 818520), (190, 676356), (228, 563630), (285, 450904), (314, 409260), (359, 357960), (380, 338178), (456, 281815), (471, 272840), (570, 225452), (628, 204630), (718, 178980), (760, 169089), (785, 163704), (942, 136420), (1077, 119320), (1140, 112726), (1256, 102315), (1436, 89490), (1570, 81852), (1795, 71592), (1884, 68210), (2154, 59660), (2280, 56363), (2355, 54568), (2872, 44745), (2983, 43080), (3140, 40926), (3590, 35796), (3768, 34105), (4308, 29830), (4710, 27284), (5385, 23864), (5966, 21540), (6280, 20463), (6821, 18840), (7180, 17898), (8616, 14915), (8949, 14360), (9420, 13642), (10770, 11932)]