19499698520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1\times {\mathrm{21341}}^1$

素因数の和:21836

約数の個数: 64

約数和(自身を含む): 44807955840

約数和(自身を除く): 25308257320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 431, 530, 862, 1060, 1724, 2120, 2155, 3448, 4310, 8620, 17240, 21341, 22843, 42682, 45686, 85364, 91372, 106705, 114215, 170728, 182744, 213410, 228430, 426820, 456860, 853640, 913720, 1131073, 2262146, 4524292, 5655365, 9048584, 9197971, 11310730, 18395942, 22621460, 36791884, 45242920, 45989855, 73583768, 91979710, 183959420, 367918840, 487492463, 974984926, 1949969852, 2437462315, 3899939704, 4874924630, 9749849260, 19499698520]

約数ペア:

[(1, 19499698520), (2, 9749849260), (4, 4874924630), (5, 3899939704), (8, 2437462315), (10, 1949969852), (20, 974984926), (40, 487492463), (53, 367918840), (106, 183959420), (212, 91979710), (265, 73583768), (424, 45989855), (431, 45242920), (530, 36791884), (862, 22621460), (1060, 18395942), (1724, 11310730), (2120, 9197971), (2155, 9048584), (3448, 5655365), (4310, 4524292), (8620, 2262146), (17240, 1131073), (21341, 913720), (22843, 853640), (42682, 456860), (45686, 426820), (85364, 228430), (91372, 213410), (106705, 182744), (114215, 170728)]