280409600

素因数分解:

$2^9\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1153}}^1$

素因数の和:1200

約数の個数: 120

約数和(自身を含む): 731936040

約数和(自身を除く): 451526440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 128, 152, 160, 190, 200, 256, 304, 320, 380, 400, 475, 512, 608, 640, 760, 800, 950, 1153, 1216, 1280, 1520, 1600, 1900, 2306, 2432, 2560, 3040, 3200, 3800, 4612, 4864, 5765, 6080, 6400, 7600, 9224, 9728, 11530, 12160, 12800, 15200, 18448, 21907, 23060, 24320, 28825, 30400, 36896, 43814, 46120, 48640, 57650, 60800, 73792, 87628, 92240, 109535, 115300, 121600, 147584, 175256, 184480, 219070, 230600, 243200, 295168, 350512, 368960, 438140, 461200, 547675, 590336, 701024, 737920, 876280, 922400, 1095350, 1402048, 1475840, 1752560, 1844800, 2190700, 2804096, 2951680, 3505120, 3689600, 4381400, 5608192, 7010240, 7379200, 8762800, 11216384, 14020480, 14758400, 17525600, 28040960, 35051200, 56081920, 70102400, 140204800, 280409600]

約数ペア:

[(1, 280409600), (2, 140204800), (4, 70102400), (5, 56081920), (8, 35051200), (10, 28040960), (16, 17525600), (19, 14758400), (20, 14020480), (25, 11216384), (32, 8762800), (38, 7379200), (40, 7010240), (50, 5608192), (64, 4381400), (76, 3689600), (80, 3505120), (95, 2951680), (100, 2804096), (128, 2190700), (152, 1844800), (160, 1752560), (190, 1475840), (200, 1402048), (256, 1095350), (304, 922400), (320, 876280), (380, 737920), (400, 701024), (475, 590336), (512, 547675), (608, 461200), (640, 438140), (760, 368960), (800, 350512), (950, 295168), (1153, 243200), (1216, 230600), (1280, 219070), (1520, 184480), (1600, 175256), (1900, 147584), (2306, 121600), (2432, 115300), (2560, 109535), (3040, 92240), (3200, 87628), (3800, 73792), (4612, 60800), (4864, 57650), (5765, 48640), (6080, 46120), (6400, 43814), (7600, 36896), (9224, 30400), (9728, 28825), (11530, 24320), (12160, 23060), (12800, 21907), (15200, 18448)]