77809520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:418

約数の個数: 80

約数和(自身を含む): 188404608

約数和(自身を除く): 110595088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 97, 148, 185, 194, 271, 296, 370, 388, 485, 542, 592, 740, 776, 970, 1084, 1355, 1480, 1552, 1940, 2168, 2710, 2960, 3589, 3880, 4336, 5420, 7178, 7760, 10027, 10840, 14356, 17945, 20054, 21680, 26287, 28712, 35890, 40108, 50135, 52574, 57424, 71780, 80216, 100270, 105148, 131435, 143560, 160432, 200540, 210296, 262870, 287120, 401080, 420592, 525740, 802160, 972619, 1051480, 1945238, 2102960, 3890476, 4863095, 7780952, 9726190, 15561904, 19452380, 38904760, 77809520]

約数ペア:

[(1, 77809520), (2, 38904760), (4, 19452380), (5, 15561904), (8, 9726190), (10, 7780952), (16, 4863095), (20, 3890476), (37, 2102960), (40, 1945238), (74, 1051480), (80, 972619), (97, 802160), (148, 525740), (185, 420592), (194, 401080), (271, 287120), (296, 262870), (370, 210296), (388, 200540), (485, 160432), (542, 143560), (592, 131435), (740, 105148), (776, 100270), (970, 80216), (1084, 71780), (1355, 57424), (1480, 52574), (1552, 50135), (1940, 40108), (2168, 35890), (2710, 28712), (2960, 26287), (3589, 21680), (3880, 20054), (4336, 17945), (5420, 14356), (7178, 10840), (7760, 10027)]