8289320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:882

約数の個数: 64

約数和(自身を含む): 21168000

約数和(自身を除く): 12878680

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 839, 988, 1235, 1678, 1976, 2470, 3356, 4195, 4940, 6712, 8390, 9880, 10907, 15941, 16780, 21814, 31882, 33560, 43628, 54535, 63764, 79705, 87256, 109070, 127528, 159410, 207233, 218140, 318820, 414466, 436280, 637640, 828932, 1036165, 1657864, 2072330, 4144660, 8289320]

約数ペア:

[(1, 8289320), (2, 4144660), (4, 2072330), (5, 1657864), (8, 1036165), (10, 828932), (13, 637640), (19, 436280), (20, 414466), (26, 318820), (38, 218140), (40, 207233), (52, 159410), (65, 127528), (76, 109070), (95, 87256), (104, 79705), (130, 63764), (152, 54535), (190, 43628), (247, 33560), (260, 31882), (380, 21814), (494, 16780), (520, 15941), (760, 10907), (839, 9880), (988, 8390), (1235, 6712), (1678, 4940), (1976, 4195), (2470, 3356)]