20125125

素因数分解:

$3^3\times 5^3\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 38188800

約数和(自身を除く): 18063675

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 67, 75, 89, 125, 135, 201, 225, 267, 335, 375, 445, 603, 675, 801, 1005, 1125, 1335, 1675, 1809, 2225, 2403, 3015, 3375, 4005, 5025, 5963, 6675, 8375, 9045, 11125, 12015, 15075, 17889, 20025, 25125, 29815, 33375, 45225, 53667, 60075, 75375, 89445, 100125, 149075, 161001, 226125, 268335, 300375, 447225, 745375, 805005, 1341675, 2236125, 4025025, 6708375, 20125125]

約数ペア:

[(1, 20125125), (3, 6708375), (5, 4025025), (9, 2236125), (15, 1341675), (25, 805005), (27, 745375), (45, 447225), (67, 300375), (75, 268335), (89, 226125), (125, 161001), (135, 149075), (201, 100125), (225, 89445), (267, 75375), (335, 60075), (375, 53667), (445, 45225), (603, 33375), (675, 29815), (801, 25125), (1005, 20025), (1125, 17889), (1335, 15075), (1675, 12015), (1809, 11125), (2225, 9045), (2403, 8375), (3015, 6675), (3375, 5963), (4005, 5025)]