42978715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{15377}}^1$

素因数の和:15438

約数の個数: 16

約数和(自身を含む): 56837088

約数和(自身を除く): 13858373

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 15377, 76885, 199901, 661211, 999505, 3306055, 8595743, 42978715]

約数ペア:

[(1, 42978715), (5, 8595743), (13, 3306055), (43, 999505), (65, 661211), (215, 199901), (559, 76885), (2795, 15377)]