28121235

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1249}}^1$

素因数の和:1355

約数の個数: 32

約数和(自身を含む): 48000000

約数和(自身を除く): 19878765

約数列:

[1, 3, 5, 15, 19, 57, 79, 95, 237, 285, 395, 1185, 1249, 1501, 3747, 4503, 6245, 7505, 18735, 22515, 23731, 71193, 98671, 118655, 296013, 355965, 493355, 1480065, 1874749, 5624247, 9373745, 28121235]

約数ペア:

[(1, 28121235), (3, 9373745), (5, 5624247), (15, 1874749), (19, 1480065), (57, 493355), (79, 355965), (95, 296013), (237, 118655), (285, 98671), (395, 71193), (1185, 23731), (1249, 22515), (1501, 18735), (3747, 7505), (4503, 6245)]