7720125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 15634944

約数和(自身を除く): 7914819

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 125, 173, 175, 255, 357, 375, 425, 519, 525, 595, 865, 875, 1211, 1275, 1785, 2125, 2595, 2625, 2941, 2975, 3633, 4325, 6055, 6375, 8823, 8925, 12975, 14705, 14875, 18165, 20587, 21625, 30275, 44115, 44625, 61761, 64875, 73525, 90825, 102935, 151375, 220575, 308805, 367625, 454125, 514675, 1102875, 1544025, 2573375, 7720125]

約数ペア:

[(1, 7720125), (3, 2573375), (5, 1544025), (7, 1102875), (15, 514675), (17, 454125), (21, 367625), (25, 308805), (35, 220575), (51, 151375), (75, 102935), (85, 90825), (105, 73525), (119, 64875), (125, 61761), (173, 44625), (175, 44115), (255, 30275), (357, 21625), (375, 20587), (425, 18165), (519, 14875), (525, 14705), (595, 12975), (865, 8925), (875, 8823), (1211, 6375), (1275, 6055), (1785, 4325), (2125, 3633), (2595, 2975), (2625, 2941)]