77941040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1091}}^1$

素因数の和:1170

約数の個数: 80

約数和(自身を含む): 194987520

約数和(自身を除く): 117046480

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, 470, 752, 760, 893, 940, 1091, 1520, 1786, 1880, 2182, 3572, 3760, 4364, 4465, 5455, 7144, 8728, 8930, 10910, 14288, 17456, 17860, 20729, 21820, 35720, 41458, 43640, 51277, 71440, 82916, 87280, 102554, 103645, 165832, 205108, 207290, 256385, 331664, 410216, 414580, 512770, 820432, 829160, 974263, 1025540, 1658320, 1948526, 2051080, 3897052, 4102160, 4871315, 7794104, 9742630, 15588208, 19485260, 38970520, 77941040]

約数ペア:

[(1, 77941040), (2, 38970520), (4, 19485260), (5, 15588208), (8, 9742630), (10, 7794104), (16, 4871315), (19, 4102160), (20, 3897052), (38, 2051080), (40, 1948526), (47, 1658320), (76, 1025540), (80, 974263), (94, 829160), (95, 820432), (152, 512770), (188, 414580), (190, 410216), (235, 331664), (304, 256385), (376, 207290), (380, 205108), (470, 165832), (752, 103645), (760, 102554), (893, 87280), (940, 82916), (1091, 71440), (1520, 51277), (1786, 43640), (1880, 41458), (2182, 35720), (3572, 21820), (3760, 20729), (4364, 17860), (4465, 17456), (5455, 14288), (7144, 10910), (8728, 8930)]