20451145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28603}}^1$

素因数の和:28632

約数の個数: 16

約数和(自身を含む): 28832832

約数和(自身を除く): 8381687

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28603, 143015, 314633, 371839, 1573165, 1859195, 4090229, 20451145]

約数ペア:

[(1, 20451145), (5, 4090229), (11, 1859195), (13, 1573165), (55, 371839), (65, 314633), (143, 143015), (715, 28603)]