15805125

素因数分解:

$3^4\times 5^3\times 7^1\times {\mathrm{223}}^1$

素因数の和:257

約数の個数: 80

約数和(自身を含む): 33825792

約数和(自身を除く): 18020667

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 125, 135, 175, 189, 223, 225, 315, 375, 405, 525, 567, 669, 675, 875, 945, 1115, 1125, 1561, 1575, 2007, 2025, 2625, 2835, 3345, 3375, 4683, 4725, 5575, 6021, 7805, 7875, 10035, 10125, 14049, 14175, 16725, 18063, 23415, 23625, 27875, 30105, 39025, 42147, 50175, 70245, 70875, 83625, 90315, 117075, 126441, 150525, 195125, 210735, 250875, 351225, 451575, 585375, 632205, 752625, 1053675, 1756125, 2257875, 3161025, 5268375, 15805125]

約数ペア:

[(1, 15805125), (3, 5268375), (5, 3161025), (7, 2257875), (9, 1756125), (15, 1053675), (21, 752625), (25, 632205), (27, 585375), (35, 451575), (45, 351225), (63, 250875), (75, 210735), (81, 195125), (105, 150525), (125, 126441), (135, 117075), (175, 90315), (189, 83625), (223, 70875), (225, 70245), (315, 50175), (375, 42147), (405, 39025), (525, 30105), (567, 27875), (669, 23625), (675, 23415), (875, 18063), (945, 16725), (1115, 14175), (1125, 14049), (1561, 10125), (1575, 10035), (2007, 7875), (2025, 7805), (2625, 6021), (2835, 5575), (3345, 4725), (3375, 4683)]