20681819960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{21377}}^1$

素因数の和:21493

約数の個数: 96

約数和(自身を含む): 49847510160

約数和(自身を除く): 29165690200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 67, 76, 95, 134, 152, 190, 268, 335, 361, 380, 536, 670, 722, 760, 1273, 1340, 1444, 1805, 2546, 2680, 2888, 3610, 5092, 6365, 7220, 10184, 12730, 14440, 21377, 24187, 25460, 42754, 48374, 50920, 85508, 96748, 106885, 120935, 171016, 193496, 213770, 241870, 406163, 427540, 483740, 812326, 855080, 967480, 1432259, 1624652, 2030815, 2864518, 3249304, 4061630, 5729036, 7161295, 7717097, 8123260, 11458072, 14322590, 15434194, 16246520, 27212921, 28645180, 30868388, 38585485, 54425842, 57290360, 61736776, 77170970, 108851684, 136064605, 154341940, 217703368, 272129210, 308683880, 517045499, 544258420, 1034090998, 1088516840, 2068181996, 2585227495, 4136363992, 5170454990, 10340909980, 20681819960]

約数ペア:

[(1, 20681819960), (2, 10340909980), (4, 5170454990), (5, 4136363992), (8, 2585227495), (10, 2068181996), (19, 1088516840), (20, 1034090998), (38, 544258420), (40, 517045499), (67, 308683880), (76, 272129210), (95, 217703368), (134, 154341940), (152, 136064605), (190, 108851684), (268, 77170970), (335, 61736776), (361, 57290360), (380, 54425842), (536, 38585485), (670, 30868388), (722, 28645180), (760, 27212921), (1273, 16246520), (1340, 15434194), (1444, 14322590), (1805, 11458072), (2546, 8123260), (2680, 7717097), (2888, 7161295), (3610, 5729036), (5092, 4061630), (6365, 3249304), (7220, 2864518), (10184, 2030815), (12730, 1624652), (14440, 1432259), (21377, 967480), (24187, 855080), (25460, 812326), (42754, 483740), (48374, 427540), (50920, 406163), (85508, 241870), (96748, 213770), (106885, 193496), (120935, 171016)]