157788125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:479

約数の個数: 40

約数和(自身を含む): 219304800

約数和(自身を除く): 61516675

約数列:

[1, 5, 11, 25, 55, 59, 125, 275, 295, 389, 625, 649, 1375, 1475, 1945, 3245, 4279, 6875, 7375, 9725, 16225, 21395, 22951, 36875, 48625, 81125, 106975, 114755, 243125, 252461, 405625, 534875, 573775, 1262305, 2674375, 2868875, 6311525, 14344375, 31557625, 157788125]

約数ペア:

[(1, 157788125), (5, 31557625), (11, 14344375), (25, 6311525), (55, 2868875), (59, 2674375), (125, 1262305), (275, 573775), (295, 534875), (389, 405625), (625, 252461), (649, 243125), (1375, 114755), (1475, 106975), (1945, 81125), (3245, 48625), (4279, 36875), (6875, 22951), (7375, 21395), (9725, 16225)]