19910222816

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2131}}^1$

素因数の和:2309

約数の個数: 144

約数和(自身を含む): 45731911680

約数和(自身を除く): 25821688864

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 121, 127, 152, 176, 209, 242, 254, 304, 352, 418, 484, 508, 608, 836, 968, 1016, 1397, 1672, 1936, 2032, 2131, 2299, 2413, 2794, 3344, 3872, 4064, 4262, 4598, 4826, 5588, 6688, 8524, 9196, 9652, 11176, 15367, 17048, 18392, 19304, 22352, 23441, 26543, 30734, 34096, 36784, 38608, 40489, 44704, 46882, 53086, 61468, 68192, 73568, 77216, 80978, 93764, 106172, 122936, 161956, 187528, 212344, 245872, 257851, 270637, 291973, 323912, 375056, 424688, 445379, 491744, 515702, 541274, 583946, 647824, 750112, 849376, 890758, 1031404, 1082548, 1167892, 1295648, 1781516, 2062808, 2165096, 2335784, 2977007, 3563032, 4125616, 4330192, 4671568, 4899169, 5142103, 5954014, 7126064, 8251232, 8660384, 9343136, 9798338, 10284206, 11908028, 14252128, 19596676, 20568412, 23816056, 32747077, 39193352, 41136824, 47632112, 56563133, 65494154, 78386704, 82273648, 95264224, 113126266, 130988308, 156773408, 164547296, 226252532, 261976616, 452505064, 523953232, 622194463, 905010128, 1047906464, 1244388926, 1810020256, 2488777852, 4977555704, 9955111408, 19910222816]

約数ペア:

[(1, 19910222816), (2, 9955111408), (4, 4977555704), (8, 2488777852), (11, 1810020256), (16, 1244388926), (19, 1047906464), (22, 905010128), (32, 622194463), (38, 523953232), (44, 452505064), (76, 261976616), (88, 226252532), (121, 164547296), (127, 156773408), (152, 130988308), (176, 113126266), (209, 95264224), (242, 82273648), (254, 78386704), (304, 65494154), (352, 56563133), (418, 47632112), (484, 41136824), (508, 39193352), (608, 32747077), (836, 23816056), (968, 20568412), (1016, 19596676), (1397, 14252128), (1672, 11908028), (1936, 10284206), (2032, 9798338), (2131, 9343136), (2299, 8660384), (2413, 8251232), (2794, 7126064), (3344, 5954014), (3872, 5142103), (4064, 4899169), (4262, 4671568), (4598, 4330192), (4826, 4125616), (5588, 3563032), (6688, 2977007), (8524, 2335784), (9196, 2165096), (9652, 2062808), (11176, 1781516), (15367, 1295648), (17048, 1167892), (18392, 1082548), (19304, 1031404), (22352, 890758), (23441, 849376), (26543, 750112), (30734, 647824), (34096, 583946), (36784, 541274), (38608, 515702), (40489, 491744), (44704, 445379), (46882, 424688), (53086, 375056), (61468, 323912), (68192, 291973), (73568, 270637), (77216, 257851), (80978, 245872), (93764, 212344), (106172, 187528), (122936, 161956)]