39978902

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{4639}}^1$

素因数の和:4811

約数の個数: 16

約数和(自身を含む): 62361600

約数和(自身を除く): 22382698

約数列:

[1, 2, 31, 62, 139, 278, 4309, 4639, 8618, 9278, 143809, 287618, 644821, 1289642, 19989451, 39978902]

約数ペア:

[(1, 39978902), (2, 19989451), (31, 1289642), (62, 644821), (139, 287618), (278, 143809), (4309, 9278), (4639, 8618)]