256528728

素因数分解:

$2^3\times 3^3\times {\mathrm{19}}^1\times {\mathrm{62507}}^1$

素因数の和:62541

約数の個数: 64

約数和(自身を含む): 750096000

約数和(自身を除く): 493567272

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 54, 57, 72, 76, 108, 114, 152, 171, 216, 228, 342, 456, 513, 684, 1026, 1368, 2052, 4104, 62507, 125014, 187521, 250028, 375042, 500056, 562563, 750084, 1125126, 1187633, 1500168, 1687689, 2250252, 2375266, 3375378, 3562899, 4500504, 4750532, 6750756, 7125798, 9501064, 10688697, 13501512, 14251596, 21377394, 28503192, 32066091, 42754788, 64132182, 85509576, 128264364, 256528728]

約数ペア:

[(1, 256528728), (2, 128264364), (3, 85509576), (4, 64132182), (6, 42754788), (8, 32066091), (9, 28503192), (12, 21377394), (18, 14251596), (19, 13501512), (24, 10688697), (27, 9501064), (36, 7125798), (38, 6750756), (54, 4750532), (57, 4500504), (72, 3562899), (76, 3375378), (108, 2375266), (114, 2250252), (152, 1687689), (171, 1500168), (216, 1187633), (228, 1125126), (342, 750084), (456, 562563), (513, 500056), (684, 375042), (1026, 250028), (1368, 187521), (2052, 125014), (4104, 62507)]