21358492040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28103279}}^1$

素因数の和:28103309

約数の個数: 32

約数和(自身を含む): 50585904000

約数和(自身を除く): 29227411960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28103279, 56206558, 112413116, 140516395, 224826232, 281032790, 533962301, 562065580, 1067924602, 1124131160, 2135849204, 2669811505, 4271698408, 5339623010, 10679246020, 21358492040]

約数ペア:

[(1, 21358492040), (2, 10679246020), (4, 5339623010), (5, 4271698408), (8, 2669811505), (10, 2135849204), (19, 1124131160), (20, 1067924602), (38, 562065580), (40, 533962301), (76, 281032790), (95, 224826232), (152, 140516395), (190, 112413116), (380, 56206558), (760, 28103279)]