1279030240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257869}}^1$

素因数の和:257915

約数の個数: 48

約数和(自身を含む): 3119195520

約数和(自身を除く): 1840165280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 257869, 515738, 1031476, 1289345, 2062952, 2578690, 4125904, 5157380, 7993939, 8251808, 10314760, 15987878, 20629520, 31975756, 39969695, 41259040, 63951512, 79939390, 127903024, 159878780, 255806048, 319757560, 639515120, 1279030240]

約数ペア:

[(1, 1279030240), (2, 639515120), (4, 319757560), (5, 255806048), (8, 159878780), (10, 127903024), (16, 79939390), (20, 63951512), (31, 41259040), (32, 39969695), (40, 31975756), (62, 20629520), (80, 15987878), (124, 10314760), (155, 8251808), (160, 7993939), (248, 5157380), (310, 4125904), (496, 2578690), (620, 2062952), (992, 1289345), (1240, 1031476), (2480, 515738), (4960, 257869)]