256157055

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:274

約数の個数: 144

約数和(自身を含む): 576201600

約数和(自身を除く): 320044545

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 49, 55, 59, 63, 77, 99, 105, 147, 165, 177, 179, 231, 245, 295, 315, 385, 413, 441, 495, 531, 537, 539, 649, 693, 735, 885, 895, 1155, 1239, 1253, 1611, 1617, 1947, 1969, 2065, 2205, 2655, 2685, 2695, 2891, 3245, 3465, 3717, 3759, 4543, 4851, 5841, 5907, 6195, 6265, 8055, 8085, 8673, 8771, 9735, 9845, 10561, 11277, 13629, 13783, 14455, 17721, 18585, 18795, 22715, 24255, 26019, 26313, 29205, 29535, 31683, 31801, 40887, 41349, 43365, 43855, 52805, 56385, 68145, 68915, 73927, 78939, 88605, 95049, 95403, 96481, 116171, 124047, 130095, 131565, 158415, 159005, 204435, 206745, 221781, 286209, 289443, 348513, 369635, 394695, 475245, 477015, 482405, 517489, 580855, 620235, 665343, 813197, 868329, 1045539, 1108905, 1431045, 1447215, 1552467, 1742565, 2439591, 2587445, 3326715, 4065985, 4341645, 4657401, 5227695, 5692379, 7318773, 7762335, 12197955, 17077137, 23287005, 28461895, 36593865, 51231411, 85385685, 256157055]

約数ペア:

[(1, 256157055), (3, 85385685), (5, 51231411), (7, 36593865), (9, 28461895), (11, 23287005), (15, 17077137), (21, 12197955), (33, 7762335), (35, 7318773), (45, 5692379), (49, 5227695), (55, 4657401), (59, 4341645), (63, 4065985), (77, 3326715), (99, 2587445), (105, 2439591), (147, 1742565), (165, 1552467), (177, 1447215), (179, 1431045), (231, 1108905), (245, 1045539), (295, 868329), (315, 813197), (385, 665343), (413, 620235), (441, 580855), (495, 517489), (531, 482405), (537, 477015), (539, 475245), (649, 394695), (693, 369635), (735, 348513), (885, 289443), (895, 286209), (1155, 221781), (1239, 206745), (1253, 204435), (1611, 159005), (1617, 158415), (1947, 131565), (1969, 130095), (2065, 124047), (2205, 116171), (2655, 96481), (2685, 95403), (2695, 95049), (2891, 88605), (3245, 78939), (3465, 73927), (3717, 68915), (3759, 68145), (4543, 56385), (4851, 52805), (5841, 43855), (5907, 43365), (6195, 41349), (6265, 40887), (8055, 31801), (8085, 31683), (8673, 29535), (8771, 29205), (9735, 26313), (9845, 26019), (10561, 24255), (11277, 22715), (13629, 18795), (13783, 18585), (14455, 17721)]