19753550

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 38970720

約数和(自身を除く): 19217170

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 89, 115, 178, 193, 230, 386, 445, 575, 890, 965, 1150, 1930, 2047, 2225, 4094, 4439, 4450, 4825, 8878, 9650, 10235, 17177, 20470, 22195, 34354, 44390, 51175, 85885, 102350, 110975, 171770, 221950, 395071, 429425, 790142, 858850, 1975355, 3950710, 9876775, 19753550]

約数ペア:

[(1, 19753550), (2, 9876775), (5, 3950710), (10, 1975355), (23, 858850), (25, 790142), (46, 429425), (50, 395071), (89, 221950), (115, 171770), (178, 110975), (193, 102350), (230, 85885), (386, 51175), (445, 44390), (575, 34354), (890, 22195), (965, 20470), (1150, 17177), (1930, 10235), (2047, 9650), (2225, 8878), (4094, 4825), (4439, 4450)]