19844800

素因数分解:

$2^6\times 5^2\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:258

約数の個数: 84

約数和(自身を含む): 49763680

約数和(自身を除く): 29918880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 157, 158, 160, 200, 314, 316, 320, 395, 400, 628, 632, 785, 790, 800, 1256, 1264, 1570, 1580, 1600, 1975, 2512, 2528, 3140, 3160, 3925, 3950, 5024, 5056, 6280, 6320, 7850, 7900, 10048, 12403, 12560, 12640, 15700, 15800, 24806, 25120, 25280, 31400, 31600, 49612, 50240, 62015, 62800, 63200, 99224, 124030, 125600, 126400, 198448, 248060, 251200, 310075, 396896, 496120, 620150, 793792, 992240, 1240300, 1984480, 2480600, 3968960, 4961200, 9922400, 19844800]

約数ペア:

[(1, 19844800), (2, 9922400), (4, 4961200), (5, 3968960), (8, 2480600), (10, 1984480), (16, 1240300), (20, 992240), (25, 793792), (32, 620150), (40, 496120), (50, 396896), (64, 310075), (79, 251200), (80, 248060), (100, 198448), (157, 126400), (158, 125600), (160, 124030), (200, 99224), (314, 63200), (316, 62800), (320, 62015), (395, 50240), (400, 49612), (628, 31600), (632, 31400), (785, 25280), (790, 25120), (800, 24806), (1256, 15800), (1264, 15700), (1570, 12640), (1580, 12560), (1600, 12403), (1975, 10048), (2512, 7900), (2528, 7850), (3140, 6320), (3160, 6280), (3925, 5056), (3950, 5024)]