28031325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 53568000

約数和(自身を除く): 25536675

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 107, 175, 321, 499, 525, 535, 749, 1497, 1605, 2247, 2495, 2675, 3493, 3745, 7485, 8025, 10479, 11235, 12475, 17465, 18725, 37425, 52395, 53393, 56175, 87325, 160179, 261975, 266965, 373751, 800895, 1121253, 1334825, 1868755, 4004475, 5606265, 9343775, 28031325]

約数ペア:

[(1, 28031325), (3, 9343775), (5, 5606265), (7, 4004475), (15, 1868755), (21, 1334825), (25, 1121253), (35, 800895), (75, 373751), (105, 266965), (107, 261975), (175, 160179), (321, 87325), (499, 56175), (525, 53393), (535, 52395), (749, 37425), (1497, 18725), (1605, 17465), (2247, 12475), (2495, 11235), (2675, 10479), (3493, 8025), (3745, 7485)]