78027980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{4639}}^1$

素因数の和:4706

約数の個数: 36

約数和(自身を含む): 169740480

約数和(自身を除く): 91712500

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4205, 4639, 8410, 9278, 16820, 18556, 23195, 46390, 92780, 134531, 269062, 538124, 672655, 1345310, 2690620, 3901399, 7802798, 15605596, 19506995, 39013990, 78027980]

約数ペア:

[(1, 78027980), (2, 39013990), (4, 19506995), (5, 15605596), (10, 7802798), (20, 3901399), (29, 2690620), (58, 1345310), (116, 672655), (145, 538124), (290, 269062), (580, 134531), (841, 92780), (1682, 46390), (3364, 23195), (4205, 18556), (4639, 16820), (8410, 9278)]