280274720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{467}}^1$

素因数の和:535

約数の個数: 144

約数和(自身を含む): 752903424

約数和(自身を除く): 472628704

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 160, 176, 220, 242, 248, 310, 341, 352, 440, 467, 484, 496, 605, 620, 682, 880, 934, 968, 992, 1210, 1240, 1364, 1705, 1760, 1868, 1936, 2335, 2420, 2480, 2728, 3410, 3736, 3751, 3872, 4670, 4840, 4960, 5137, 5456, 6820, 7472, 7502, 9340, 9680, 10274, 10912, 13640, 14477, 14944, 15004, 18680, 18755, 19360, 20548, 25685, 27280, 28954, 30008, 37360, 37510, 41096, 51370, 54560, 56507, 57908, 60016, 72385, 74720, 75020, 82192, 102740, 113014, 115816, 120032, 144770, 150040, 159247, 164384, 205480, 226028, 231632, 282535, 289540, 300080, 318494, 410960, 452056, 463264, 565070, 579080, 600160, 636988, 796235, 821920, 904112, 1130140, 1158160, 1273976, 1592470, 1751717, 1808224, 2260280, 2316320, 2547952, 3184940, 3503434, 4520560, 5095904, 6369880, 7006868, 8758585, 9041120, 12739760, 14013736, 17517170, 25479520, 28027472, 35034340, 56054944, 70068680, 140137360, 280274720]

約数ペア:

[(1, 280274720), (2, 140137360), (4, 70068680), (5, 56054944), (8, 35034340), (10, 28027472), (11, 25479520), (16, 17517170), (20, 14013736), (22, 12739760), (31, 9041120), (32, 8758585), (40, 7006868), (44, 6369880), (55, 5095904), (62, 4520560), (80, 3503434), (88, 3184940), (110, 2547952), (121, 2316320), (124, 2260280), (155, 1808224), (160, 1751717), (176, 1592470), (220, 1273976), (242, 1158160), (248, 1130140), (310, 904112), (341, 821920), (352, 796235), (440, 636988), (467, 600160), (484, 579080), (496, 565070), (605, 463264), (620, 452056), (682, 410960), (880, 318494), (934, 300080), (968, 289540), (992, 282535), (1210, 231632), (1240, 226028), (1364, 205480), (1705, 164384), (1760, 159247), (1868, 150040), (1936, 144770), (2335, 120032), (2420, 115816), (2480, 113014), (2728, 102740), (3410, 82192), (3736, 75020), (3751, 74720), (3872, 72385), (4670, 60016), (4840, 57908), (4960, 56507), (5137, 54560), (5456, 51370), (6820, 41096), (7472, 37510), (7502, 37360), (9340, 30008), (9680, 28954), (10274, 27280), (10912, 25685), (13640, 20548), (14477, 19360), (14944, 18755), (15004, 18680)]