247573125

素因数分解:

$3^3\times 5^4\times {\mathrm{17}}^1\times {\mathrm{863}}^1$

素因数の和:909

約数の個数: 80

約数和(自身を含む): 485844480

約数和(自身を除く): 238271355

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 125, 135, 153, 225, 255, 375, 425, 459, 625, 675, 765, 863, 1125, 1275, 1875, 2125, 2295, 2589, 3375, 3825, 4315, 5625, 6375, 7767, 10625, 11475, 12945, 14671, 16875, 19125, 21575, 23301, 31875, 38835, 44013, 57375, 64725, 73355, 95625, 107875, 116505, 132039, 194175, 220065, 286875, 323625, 366775, 396117, 539375, 582525, 660195, 970875, 1100325, 1618125, 1833875, 1980585, 2912625, 3300975, 4854375, 5501625, 9169375, 9902925, 14563125, 16504875, 27508125, 49514625, 82524375, 247573125]

約数ペア:

[(1, 247573125), (3, 82524375), (5, 49514625), (9, 27508125), (15, 16504875), (17, 14563125), (25, 9902925), (27, 9169375), (45, 5501625), (51, 4854375), (75, 3300975), (85, 2912625), (125, 1980585), (135, 1833875), (153, 1618125), (225, 1100325), (255, 970875), (375, 660195), (425, 582525), (459, 539375), (625, 396117), (675, 366775), (765, 323625), (863, 286875), (1125, 220065), (1275, 194175), (1875, 132039), (2125, 116505), (2295, 107875), (2589, 95625), (3375, 73355), (3825, 64725), (4315, 57375), (5625, 44013), (6375, 38835), (7767, 31875), (10625, 23301), (11475, 21575), (12945, 19125), (14671, 16875)]