28910875

素因数分解:

$5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 64

約数和(自身を含む): 45527040

約数和(自身を除く): 16616165

約数列:

[1, 5, 7, 19, 25, 35, 37, 47, 95, 125, 133, 175, 185, 235, 259, 329, 475, 665, 703, 875, 893, 925, 1175, 1295, 1645, 1739, 2375, 3325, 3515, 4465, 4625, 4921, 5875, 6251, 6475, 8225, 8695, 12173, 16625, 17575, 22325, 24605, 31255, 32375, 33041, 41125, 43475, 60865, 87875, 111625, 123025, 156275, 165205, 217375, 231287, 304325, 615125, 781375, 826025, 1156435, 1521625, 4130125, 5782175, 28910875]

約数ペア:

[(1, 28910875), (5, 5782175), (7, 4130125), (19, 1521625), (25, 1156435), (35, 826025), (37, 781375), (47, 615125), (95, 304325), (125, 231287), (133, 217375), (175, 165205), (185, 156275), (235, 123025), (259, 111625), (329, 87875), (475, 60865), (665, 43475), (703, 41125), (875, 33041), (893, 32375), (925, 31255), (1175, 24605), (1295, 22325), (1645, 17575), (1739, 16625), (2375, 12173), (3325, 8695), (3515, 8225), (4465, 6475), (4625, 6251), (4921, 5875)]