20178837045

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1\times {\mathrm{4091}}^1$

素因数の和:4768

約数の個数: 80

約数和(自身を含む): 38144969280

約数和(自身を除く): 17966132235

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 641, 855, 1539, 1923, 2565, 3205, 4091, 5769, 7695, 9615, 12179, 12273, 17307, 20455, 28845, 36537, 36819, 51921, 60895, 61365, 77729, 86535, 109611, 110457, 182685, 184095, 233187, 259605, 328833, 331371, 388645, 548055, 552285, 699561, 986499, 1165935, 1644165, 1656855, 2098683, 2622331, 3497805, 4932495, 6296049, 7866993, 10493415, 13111655, 23600979, 31480245, 39334965, 49824289, 70802937, 118004895, 149472867, 212408811, 249121445, 354014685, 448418601, 747364335, 1062044055, 1345255803, 2242093005, 4035767409, 6726279015, 20178837045]

約数ペア:

[(1, 20178837045), (3, 6726279015), (5, 4035767409), (9, 2242093005), (15, 1345255803), (19, 1062044055), (27, 747364335), (45, 448418601), (57, 354014685), (81, 249121445), (95, 212408811), (135, 149472867), (171, 118004895), (285, 70802937), (405, 49824289), (513, 39334965), (641, 31480245), (855, 23600979), (1539, 13111655), (1923, 10493415), (2565, 7866993), (3205, 6296049), (4091, 4932495), (5769, 3497805), (7695, 2622331), (9615, 2098683), (12179, 1656855), (12273, 1644165), (17307, 1165935), (20455, 986499), (28845, 699561), (36537, 552285), (36819, 548055), (51921, 388645), (60895, 331371), (61365, 328833), (77729, 259605), (86535, 233187), (109611, 184095), (110457, 182685)]