18796475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{941}}^1$

素因数の和:1015

約数の個数: 24

約数和(自身を含む): 25230528

約数和(自身を除く): 6434053

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 941, 1175, 3995, 4705, 15997, 19975, 23525, 44227, 79985, 221135, 399925, 751859, 1105675, 3759295, 18796475]

約数ペア:

[(1, 18796475), (5, 3759295), (17, 1105675), (25, 751859), (47, 399925), (85, 221135), (235, 79985), (425, 44227), (799, 23525), (941, 19975), (1175, 15997), (3995, 4705)]