19980552

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1019}}^1$

素因数の和:1090

約数の個数: 64

約数和(自身を含む): 53856000

約数和(自身を除く): 33875448

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 43, 57, 76, 86, 114, 129, 152, 172, 228, 258, 344, 456, 516, 817, 1019, 1032, 1634, 2038, 2451, 3057, 3268, 4076, 4902, 6114, 6536, 8152, 9804, 12228, 19361, 19608, 24456, 38722, 43817, 58083, 77444, 87634, 116166, 131451, 154888, 175268, 232332, 262902, 350536, 464664, 525804, 832523, 1051608, 1665046, 2497569, 3330092, 4995138, 6660184, 9990276, 19980552]

約数ペア:

[(1, 19980552), (2, 9990276), (3, 6660184), (4, 4995138), (6, 3330092), (8, 2497569), (12, 1665046), (19, 1051608), (24, 832523), (38, 525804), (43, 464664), (57, 350536), (76, 262902), (86, 232332), (114, 175268), (129, 154888), (152, 131451), (172, 116166), (228, 87634), (258, 77444), (344, 58083), (456, 43817), (516, 38722), (817, 24456), (1019, 19608), (1032, 19361), (1634, 12228), (2038, 9804), (2451, 8152), (3057, 6536), (3268, 6114), (4076, 4902)]