869840

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 40

約数和(自身を含む): 2062368

約数和(自身を除く): 1192528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 131, 166, 262, 332, 415, 524, 655, 664, 830, 1048, 1310, 1328, 1660, 2096, 2620, 3320, 5240, 6640, 10480, 10873, 21746, 43492, 54365, 86984, 108730, 173968, 217460, 434920, 869840]

約数ペア:

[(1, 869840), (2, 434920), (4, 217460), (5, 173968), (8, 108730), (10, 86984), (16, 54365), (20, 43492), (40, 21746), (80, 10873), (83, 10480), (131, 6640), (166, 5240), (262, 3320), (332, 2620), (415, 2096), (524, 1660), (655, 1328), (664, 1310), (830, 1048)]