27771920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:205

約数の個数: 120

約数和(自身を含む): 75203520

約数和(自身を除く): 47431600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 151, 152, 176, 190, 209, 220, 242, 302, 304, 380, 418, 440, 484, 604, 605, 755, 760, 836, 880, 968, 1045, 1208, 1210, 1510, 1520, 1661, 1672, 1936, 2090, 2299, 2416, 2420, 2869, 3020, 3322, 3344, 4180, 4598, 4840, 5738, 6040, 6644, 8305, 8360, 9196, 9680, 11476, 11495, 12080, 13288, 14345, 16610, 16720, 18271, 18392, 22952, 22990, 26576, 28690, 31559, 33220, 36542, 36784, 45904, 45980, 57380, 63118, 66440, 73084, 91355, 91960, 114760, 126236, 132880, 146168, 157795, 182710, 183920, 229520, 252472, 292336, 315590, 347149, 365420, 504944, 631180, 694298, 730840, 1262360, 1388596, 1461680, 1735745, 2524720, 2777192, 3471490, 5554384, 6942980, 13885960, 27771920]

約数ペア:

[(1, 27771920), (2, 13885960), (4, 6942980), (5, 5554384), (8, 3471490), (10, 2777192), (11, 2524720), (16, 1735745), (19, 1461680), (20, 1388596), (22, 1262360), (38, 730840), (40, 694298), (44, 631180), (55, 504944), (76, 365420), (80, 347149), (88, 315590), (95, 292336), (110, 252472), (121, 229520), (151, 183920), (152, 182710), (176, 157795), (190, 146168), (209, 132880), (220, 126236), (242, 114760), (302, 91960), (304, 91355), (380, 73084), (418, 66440), (440, 63118), (484, 57380), (604, 45980), (605, 45904), (755, 36784), (760, 36542), (836, 33220), (880, 31559), (968, 28690), (1045, 26576), (1208, 22990), (1210, 22952), (1510, 18392), (1520, 18271), (1661, 16720), (1672, 16610), (1936, 14345), (2090, 13288), (2299, 12080), (2416, 11495), (2420, 11476), (2869, 9680), (3020, 9196), (3322, 8360), (3344, 8305), (4180, 6644), (4598, 6040), (4840, 5738)]