79990990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{2731}}^1$

素因数の和:2868

約数の個数: 32

約数和(自身を含む): 150478560

約数和(自身を除く): 70487570

約数列:

[1, 2, 5, 10, 29, 58, 101, 145, 202, 290, 505, 1010, 2731, 2929, 5462, 5858, 13655, 14645, 27310, 29290, 79199, 158398, 275831, 395995, 551662, 791990, 1379155, 2758310, 7999099, 15998198, 39995495, 79990990]

約数ペア:

[(1, 79990990), (2, 39995495), (5, 15998198), (10, 7999099), (29, 2758310), (58, 1379155), (101, 791990), (145, 551662), (202, 395995), (290, 275831), (505, 158398), (1010, 79199), (2731, 29290), (2929, 27310), (5462, 14645), (5858, 13655)]