42178220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 104033664

約数和(自身を除く): 61855444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 223, 245, 386, 446, 490, 772, 892, 965, 980, 1115, 1351, 1561, 1930, 2230, 2702, 3122, 3860, 4460, 5404, 6244, 6755, 7805, 9457, 10927, 13510, 15610, 18914, 21854, 27020, 31220, 37828, 43039, 43708, 47285, 54635, 86078, 94570, 109270, 172156, 189140, 215195, 218540, 301273, 430390, 602546, 860780, 1205092, 1506365, 2108911, 3012730, 4217822, 6025460, 8435644, 10544555, 21089110, 42178220]

約数ペア:

[(1, 42178220), (2, 21089110), (4, 10544555), (5, 8435644), (7, 6025460), (10, 4217822), (14, 3012730), (20, 2108911), (28, 1506365), (35, 1205092), (49, 860780), (70, 602546), (98, 430390), (140, 301273), (193, 218540), (196, 215195), (223, 189140), (245, 172156), (386, 109270), (446, 94570), (490, 86078), (772, 54635), (892, 47285), (965, 43708), (980, 43039), (1115, 37828), (1351, 31220), (1561, 27020), (1930, 21854), (2230, 18914), (2702, 15610), (3122, 13510), (3860, 10927), (4460, 9457), (5404, 7805), (6244, 6755)]