80756840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1801}}^1$

素因数の和:1890

約数の個数: 64

約数和(自身を含む): 194616000

約数和(自身を除く): 113859160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 59, 76, 95, 118, 152, 190, 236, 295, 380, 472, 590, 760, 1121, 1180, 1801, 2242, 2360, 3602, 4484, 5605, 7204, 8968, 9005, 11210, 14408, 18010, 22420, 34219, 36020, 44840, 68438, 72040, 106259, 136876, 171095, 212518, 273752, 342190, 425036, 531295, 684380, 850072, 1062590, 1368760, 2018921, 2125180, 4037842, 4250360, 8075684, 10094605, 16151368, 20189210, 40378420, 80756840]

約数ペア:

[(1, 80756840), (2, 40378420), (4, 20189210), (5, 16151368), (8, 10094605), (10, 8075684), (19, 4250360), (20, 4037842), (38, 2125180), (40, 2018921), (59, 1368760), (76, 1062590), (95, 850072), (118, 684380), (152, 531295), (190, 425036), (236, 342190), (295, 273752), (380, 212518), (472, 171095), (590, 136876), (760, 106259), (1121, 72040), (1180, 68438), (1801, 44840), (2242, 36020), (2360, 34219), (3602, 22420), (4484, 18010), (5605, 14408), (7204, 11210), (8968, 9005)]