28090395

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1613}}^1$

素因数の和:1673

約数の個数: 40

約数和(自身を含む): 51557616

約数和(自身を除く): 23467221

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1613, 1935, 3483, 4839, 5805, 8065, 14517, 17415, 24195, 43551, 69359, 72585, 130653, 208077, 217755, 346795, 624231, 653265, 1040385, 1872693, 3121155, 5618079, 9363465, 28090395]

約数ペア:

[(1, 28090395), (3, 9363465), (5, 5618079), (9, 3121155), (15, 1872693), (27, 1040385), (43, 653265), (45, 624231), (81, 346795), (129, 217755), (135, 208077), (215, 130653), (387, 72585), (405, 69359), (645, 43551), (1161, 24195), (1613, 17415), (1935, 14517), (3483, 8065), (4839, 5805)]