128776875

素因数分解:

$3^1\times 5^4\times {\mathrm{173}}^1\times {\mathrm{397}}^1$

素因数の和:593

約数の個数: 40

約数和(自身を含む): 216343248

約数和(自身を除く): 87566373

約数列:

[1, 3, 5, 15, 25, 75, 125, 173, 375, 397, 519, 625, 865, 1191, 1875, 1985, 2595, 4325, 5955, 9925, 12975, 21625, 29775, 49625, 64875, 68681, 108125, 148875, 206043, 248125, 324375, 343405, 744375, 1030215, 1717025, 5151075, 8585125, 25755375, 42925625, 128776875]

約数ペア:

[(1, 128776875), (3, 42925625), (5, 25755375), (15, 8585125), (25, 5151075), (75, 1717025), (125, 1030215), (173, 744375), (375, 343405), (397, 324375), (519, 248125), (625, 206043), (865, 148875), (1191, 108125), (1875, 68681), (1985, 64875), (2595, 49625), (4325, 29775), (5955, 21625), (9925, 12975)]