89159980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{48989}}^1$

素因数の和:49018

約数の個数: 48

約数和(自身を含む): 230448960

約数和(自身を除く): 141288980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 48989, 97978, 195956, 244945, 342923, 489890, 636857, 685846, 979780, 1273714, 1371692, 1714615, 2547428, 3184285, 3429230, 4457999, 6368570, 6858460, 8915998, 12737140, 17831996, 22289995, 44579990, 89159980]

約数ペア:

[(1, 89159980), (2, 44579990), (4, 22289995), (5, 17831996), (7, 12737140), (10, 8915998), (13, 6858460), (14, 6368570), (20, 4457999), (26, 3429230), (28, 3184285), (35, 2547428), (52, 1714615), (65, 1371692), (70, 1273714), (91, 979780), (130, 685846), (140, 636857), (182, 489890), (260, 342923), (364, 244945), (455, 195956), (910, 97978), (1820, 48989)]