788401960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{10271}}^1$

素因数の和:10402

約数の個数: 64

約数和(自身を含む): 1885939200

約数和(自身を除く): 1097537240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 380, 404, 505, 760, 808, 1010, 1919, 2020, 3838, 4040, 7676, 9595, 10271, 15352, 19190, 20542, 38380, 41084, 51355, 76760, 82168, 102710, 195149, 205420, 390298, 410840, 780596, 975745, 1037371, 1561192, 1951490, 2074742, 3902980, 4149484, 5186855, 7805960, 8298968, 10373710, 19710049, 20747420, 39420098, 41494840, 78840196, 98550245, 157680392, 197100490, 394200980, 788401960]

約数ペア:

[(1, 788401960), (2, 394200980), (4, 197100490), (5, 157680392), (8, 98550245), (10, 78840196), (19, 41494840), (20, 39420098), (38, 20747420), (40, 19710049), (76, 10373710), (95, 8298968), (101, 7805960), (152, 5186855), (190, 4149484), (202, 3902980), (380, 2074742), (404, 1951490), (505, 1561192), (760, 1037371), (808, 975745), (1010, 780596), (1919, 410840), (2020, 390298), (3838, 205420), (4040, 195149), (7676, 102710), (9595, 82168), (10271, 76760), (15352, 51355), (19190, 41084), (20542, 38380)]