30790640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 46347280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 188, 190, 235, 304, 376, 380, 431, 470, 752, 760, 862, 893, 940, 1520, 1724, 1786, 1880, 2155, 3448, 3572, 3760, 4310, 4465, 6896, 7144, 8189, 8620, 8930, 14288, 16378, 17240, 17860, 20257, 32756, 34480, 35720, 40514, 40945, 65512, 71440, 81028, 81890, 101285, 131024, 162056, 163780, 202570, 324112, 327560, 384883, 405140, 655120, 769766, 810280, 1539532, 1620560, 1924415, 3079064, 3848830, 6158128, 7697660, 15395320, 30790640]

約数ペア:

[(1, 30790640), (2, 15395320), (4, 7697660), (5, 6158128), (8, 3848830), (10, 3079064), (16, 1924415), (19, 1620560), (20, 1539532), (38, 810280), (40, 769766), (47, 655120), (76, 405140), (80, 384883), (94, 327560), (95, 324112), (152, 202570), (188, 163780), (190, 162056), (235, 131024), (304, 101285), (376, 81890), (380, 81028), (431, 71440), (470, 65512), (752, 40945), (760, 40514), (862, 35720), (893, 34480), (940, 32756), (1520, 20257), (1724, 17860), (1786, 17240), (1880, 16378), (2155, 14288), (3448, 8930), (3572, 8620), (3760, 8189), (4310, 7144), (4465, 6896)]