1640711280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{525869}}^1$

素因数の和:525898

約数の個数: 80

約数和(自身を含む): 5477461920

約数和(自身を除く): 3836750640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 525869, 1051738, 1577607, 2103476, 2629345, 3155214, 4206952, 5258690, 6310428, 6836297, 7888035, 8413904, 10517380, 12620856, 13672594, 15776070, 20508891, 21034760, 25241712, 27345188, 31552140, 34181485, 41017782, 42069520, 54690376, 63104280, 68362970, 82035564, 102544455, 109380752, 126208560, 136725940, 164071128, 205088910, 273451880, 328142256, 410177820, 546903760, 820355640, 1640711280]

約数ペア:

[(1, 1640711280), (2, 820355640), (3, 546903760), (4, 410177820), (5, 328142256), (6, 273451880), (8, 205088910), (10, 164071128), (12, 136725940), (13, 126208560), (15, 109380752), (16, 102544455), (20, 82035564), (24, 68362970), (26, 63104280), (30, 54690376), (39, 42069520), (40, 41017782), (48, 34181485), (52, 31552140), (60, 27345188), (65, 25241712), (78, 21034760), (80, 20508891), (104, 15776070), (120, 13672594), (130, 12620856), (156, 10517380), (195, 8413904), (208, 7888035), (240, 6836297), (260, 6310428), (312, 5258690), (390, 4206952), (520, 3155214), (624, 2629345), (780, 2103476), (1040, 1577607), (1560, 1051738), (3120, 525869)]