81452800

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:139

約数の個数: 216

約数和(自身を含む): 239515920

約数和(自身を除く): 158063120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 32, 40, 44, 50, 52, 55, 64, 65, 80, 88, 89, 100, 104, 110, 128, 130, 143, 160, 176, 178, 200, 208, 220, 256, 260, 275, 286, 320, 325, 352, 356, 400, 416, 440, 445, 520, 550, 572, 640, 650, 704, 712, 715, 800, 832, 880, 890, 979, 1040, 1100, 1144, 1157, 1280, 1300, 1408, 1424, 1430, 1600, 1664, 1760, 1780, 1958, 2080, 2200, 2225, 2288, 2314, 2600, 2816, 2848, 2860, 3200, 3328, 3520, 3560, 3575, 3916, 4160, 4400, 4450, 4576, 4628, 4895, 5200, 5696, 5720, 5785, 6400, 7040, 7120, 7150, 7832, 8320, 8800, 8900, 9152, 9256, 9790, 10400, 11392, 11440, 11570, 12727, 14080, 14240, 14300, 15664, 16640, 17600, 17800, 18304, 18512, 19580, 20800, 22784, 22880, 23140, 24475, 25454, 28480, 28600, 28925, 31328, 35200, 35600, 36608, 37024, 39160, 41600, 45760, 46280, 48950, 50908, 56960, 57200, 57850, 62656, 63635, 70400, 71200, 74048, 78320, 83200, 91520, 92560, 97900, 101816, 113920, 114400, 115700, 125312, 127270, 142400, 148096, 156640, 183040, 185120, 195800, 203632, 228800, 231400, 250624, 254540, 284800, 296192, 313280, 318175, 370240, 391600, 407264, 457600, 462800, 509080, 569600, 626560, 636350, 740480, 783200, 814528, 915200, 925600, 1018160, 1253120, 1272700, 1480960, 1566400, 1629056, 1851200, 2036320, 2545400, 3132800, 3258112, 3702400, 4072640, 5090800, 6265600, 7404800, 8145280, 10181600, 16290560, 20363200, 40726400, 81452800]

約数ペア:

[(1, 81452800), (2, 40726400), (4, 20363200), (5, 16290560), (8, 10181600), (10, 8145280), (11, 7404800), (13, 6265600), (16, 5090800), (20, 4072640), (22, 3702400), (25, 3258112), (26, 3132800), (32, 2545400), (40, 2036320), (44, 1851200), (50, 1629056), (52, 1566400), (55, 1480960), (64, 1272700), (65, 1253120), (80, 1018160), (88, 925600), (89, 915200), (100, 814528), (104, 783200), (110, 740480), (128, 636350), (130, 626560), (143, 569600), (160, 509080), (176, 462800), (178, 457600), (200, 407264), (208, 391600), (220, 370240), (256, 318175), (260, 313280), (275, 296192), (286, 284800), (320, 254540), (325, 250624), (352, 231400), (356, 228800), (400, 203632), (416, 195800), (440, 185120), (445, 183040), (520, 156640), (550, 148096), (572, 142400), (640, 127270), (650, 125312), (704, 115700), (712, 114400), (715, 113920), (800, 101816), (832, 97900), (880, 92560), (890, 91520), (979, 83200), (1040, 78320), (1100, 74048), (1144, 71200), (1157, 70400), (1280, 63635), (1300, 62656), (1408, 57850), (1424, 57200), (1430, 56960), (1600, 50908), (1664, 48950), (1760, 46280), (1780, 45760), (1958, 41600), (2080, 39160), (2200, 37024), (2225, 36608), (2288, 35600), (2314, 35200), (2600, 31328), (2816, 28925), (2848, 28600), (2860, 28480), (3200, 25454), (3328, 24475), (3520, 23140), (3560, 22880), (3575, 22784), (3916, 20800), (4160, 19580), (4400, 18512), (4450, 18304), (4576, 17800), (4628, 17600), (4895, 16640), (5200, 15664), (5696, 14300), (5720, 14240), (5785, 14080), (6400, 12727), (7040, 11570), (7120, 11440), (7150, 11392), (7832, 10400), (8320, 9790), (8800, 9256), (8900, 9152)]