199987575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1553}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 353789856

約数和(自身を除く): 153802281

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 101, 255, 303, 425, 505, 1275, 1515, 1553, 1717, 2525, 4659, 5151, 7575, 7765, 8585, 23295, 25755, 26401, 38825, 42925, 79203, 116475, 128775, 132005, 156853, 396015, 470559, 660025, 784265, 1980075, 2352795, 2666501, 3921325, 7999503, 11763975, 13332505, 39997515, 66662525, 199987575]

約数ペア:

[(1, 199987575), (3, 66662525), (5, 39997515), (15, 13332505), (17, 11763975), (25, 7999503), (51, 3921325), (75, 2666501), (85, 2352795), (101, 1980075), (255, 784265), (303, 660025), (425, 470559), (505, 396015), (1275, 156853), (1515, 132005), (1553, 128775), (1717, 116475), (2525, 79203), (4659, 42925), (5151, 38825), (7575, 26401), (7765, 25755), (8585, 23295)]