89750920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{320539}}^1$

素因数の和:320557

約数の個数: 32

約数和(自身を含む): 230788800

約数和(自身を除く): 141037880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 320539, 641078, 1282156, 1602695, 2243773, 2564312, 3205390, 4487546, 6410780, 8975092, 11218865, 12821560, 17950184, 22437730, 44875460, 89750920]

約数ペア:

[(1, 89750920), (2, 44875460), (4, 22437730), (5, 17950184), (7, 12821560), (8, 11218865), (10, 8975092), (14, 6410780), (20, 4487546), (28, 3205390), (35, 2564312), (40, 2243773), (56, 1602695), (70, 1282156), (140, 641078), (280, 320539)]