16809990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 42045696

約数和(自身を除く): 25235706

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 83, 86, 129, 157, 166, 215, 249, 258, 314, 415, 430, 471, 498, 645, 785, 830, 942, 1245, 1290, 1570, 2355, 2490, 3569, 4710, 6751, 7138, 10707, 13031, 13502, 17845, 20253, 21414, 26062, 33755, 35690, 39093, 40506, 53535, 65155, 67510, 78186, 101265, 107070, 130310, 195465, 202530, 390930, 560333, 1120666, 1680999, 2801665, 3361998, 5603330, 8404995, 16809990]

約数ペア:

[(1, 16809990), (2, 8404995), (3, 5603330), (5, 3361998), (6, 2801665), (10, 1680999), (15, 1120666), (30, 560333), (43, 390930), (83, 202530), (86, 195465), (129, 130310), (157, 107070), (166, 101265), (215, 78186), (249, 67510), (258, 65155), (314, 53535), (415, 40506), (430, 39093), (471, 35690), (498, 33755), (645, 26062), (785, 21414), (830, 20253), (942, 17845), (1245, 13502), (1290, 13031), (1570, 10707), (2355, 7138), (2490, 6751), (3569, 4710)]