15949820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 35054208

約数和(自身を除く): 19104388

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 367, 410, 530, 734, 820, 1060, 1468, 1835, 2173, 3670, 4346, 7340, 8692, 10865, 15047, 19451, 21730, 30094, 38902, 43460, 60188, 75235, 77804, 97255, 150470, 194510, 300940, 389020, 797491, 1594982, 3189964, 3987455, 7974910, 15949820]

約数ペア:

[(1, 15949820), (2, 7974910), (4, 3987455), (5, 3189964), (10, 1594982), (20, 797491), (41, 389020), (53, 300940), (82, 194510), (106, 150470), (164, 97255), (205, 77804), (212, 75235), (265, 60188), (367, 43460), (410, 38902), (530, 30094), (734, 21730), (820, 19451), (1060, 15047), (1468, 10865), (1835, 8692), (2173, 7340), (3670, 4346)]