18870810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3947

約数の個数: 64

約数和(自身を含む): 54024192

約数和(自身を除く): 35153382

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 690, 805, 966, 1610, 2415, 3907, 4830, 7814, 11721, 19535, 23442, 27349, 39070, 54698, 58605, 82047, 89861, 117210, 136745, 164094, 179722, 269583, 273490, 410235, 449305, 539166, 629027, 820470, 898610, 1258054, 1347915, 1887081, 2695830, 3145135, 3774162, 6290270, 9435405, 18870810]

約数ペア:

[(1, 18870810), (2, 9435405), (3, 6290270), (5, 3774162), (6, 3145135), (7, 2695830), (10, 1887081), (14, 1347915), (15, 1258054), (21, 898610), (23, 820470), (30, 629027), (35, 539166), (42, 449305), (46, 410235), (69, 273490), (70, 269583), (105, 179722), (115, 164094), (138, 136745), (161, 117210), (210, 89861), (230, 82047), (322, 58605), (345, 54698), (483, 39070), (690, 27349), (805, 23442), (966, 19535), (1610, 11721), (2415, 7814), (3907, 4830)]