19702696

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 64

約数和(自身を含む): 42840000

約数和(自身を除く): 23137304

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 59, 76, 104, 118, 152, 169, 236, 247, 338, 472, 494, 676, 767, 988, 1121, 1352, 1534, 1976, 2197, 2242, 3068, 3211, 4394, 4484, 6136, 6422, 8788, 8968, 9971, 12844, 14573, 17576, 19942, 25688, 29146, 39884, 41743, 58292, 79768, 83486, 116584, 129623, 166972, 189449, 259246, 333944, 378898, 518492, 757796, 1036984, 1515592, 2462837, 4925674, 9851348, 19702696]

約数ペア:

[(1, 19702696), (2, 9851348), (4, 4925674), (8, 2462837), (13, 1515592), (19, 1036984), (26, 757796), (38, 518492), (52, 378898), (59, 333944), (76, 259246), (104, 189449), (118, 166972), (152, 129623), (169, 116584), (236, 83486), (247, 79768), (338, 58292), (472, 41743), (494, 39884), (676, 29146), (767, 25688), (988, 19942), (1121, 17576), (1352, 14573), (1534, 12844), (1976, 9971), (2197, 8968), (2242, 8788), (3068, 6422), (3211, 6136), (4394, 4484)]