158758400

素因数分解:

$2^9\times 5^2\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:264

約数の個数: 120

約数和(自身を含む): 400852320

約数和(自身を除く): 242093920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 128, 157, 158, 160, 200, 256, 314, 316, 320, 395, 400, 512, 628, 632, 640, 785, 790, 800, 1256, 1264, 1280, 1570, 1580, 1600, 1975, 2512, 2528, 2560, 3140, 3160, 3200, 3925, 3950, 5024, 5056, 6280, 6320, 6400, 7850, 7900, 10048, 10112, 12403, 12560, 12640, 12800, 15700, 15800, 20096, 20224, 24806, 25120, 25280, 31400, 31600, 40192, 40448, 49612, 50240, 50560, 62015, 62800, 63200, 80384, 99224, 100480, 101120, 124030, 125600, 126400, 198448, 200960, 202240, 248060, 251200, 252800, 310075, 396896, 401920, 496120, 502400, 505600, 620150, 793792, 992240, 1004800, 1011200, 1240300, 1587584, 1984480, 2009600, 2480600, 3175168, 3968960, 4961200, 6350336, 7937920, 9922400, 15875840, 19844800, 31751680, 39689600, 79379200, 158758400]

約数ペア:

[(1, 158758400), (2, 79379200), (4, 39689600), (5, 31751680), (8, 19844800), (10, 15875840), (16, 9922400), (20, 7937920), (25, 6350336), (32, 4961200), (40, 3968960), (50, 3175168), (64, 2480600), (79, 2009600), (80, 1984480), (100, 1587584), (128, 1240300), (157, 1011200), (158, 1004800), (160, 992240), (200, 793792), (256, 620150), (314, 505600), (316, 502400), (320, 496120), (395, 401920), (400, 396896), (512, 310075), (628, 252800), (632, 251200), (640, 248060), (785, 202240), (790, 200960), (800, 198448), (1256, 126400), (1264, 125600), (1280, 124030), (1570, 101120), (1580, 100480), (1600, 99224), (1975, 80384), (2512, 63200), (2528, 62800), (2560, 62015), (3140, 50560), (3160, 50240), (3200, 49612), (3925, 40448), (3950, 40192), (5024, 31600), (5056, 31400), (6280, 25280), (6320, 25120), (6400, 24806), (7850, 20224), (7900, 20096), (10048, 15800), (10112, 15700), (12403, 12800), (12560, 12640)]