210380000

素因数分解:

$2^5\times 5^4\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:254

約数の個数: 120

約数和(自身を含む): 528637032

約数和(自身を除く): 318257032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 67, 80, 100, 125, 134, 157, 160, 200, 250, 268, 314, 335, 400, 500, 536, 625, 628, 670, 785, 800, 1000, 1072, 1250, 1256, 1340, 1570, 1675, 2000, 2144, 2500, 2512, 2680, 3140, 3350, 3925, 4000, 5000, 5024, 5360, 6280, 6700, 7850, 8375, 10000, 10519, 10720, 12560, 13400, 15700, 16750, 19625, 20000, 21038, 25120, 26800, 31400, 33500, 39250, 41875, 42076, 52595, 53600, 62800, 67000, 78500, 83750, 84152, 98125, 105190, 125600, 134000, 157000, 167500, 168304, 196250, 210380, 262975, 268000, 314000, 335000, 336608, 392500, 420760, 525950, 628000, 670000, 785000, 841520, 1051900, 1314875, 1340000, 1570000, 1683040, 2103800, 2629750, 3140000, 4207600, 5259500, 6574375, 8415200, 10519000, 13148750, 21038000, 26297500, 42076000, 52595000, 105190000, 210380000]

約数ペア:

[(1, 210380000), (2, 105190000), (4, 52595000), (5, 42076000), (8, 26297500), (10, 21038000), (16, 13148750), (20, 10519000), (25, 8415200), (32, 6574375), (40, 5259500), (50, 4207600), (67, 3140000), (80, 2629750), (100, 2103800), (125, 1683040), (134, 1570000), (157, 1340000), (160, 1314875), (200, 1051900), (250, 841520), (268, 785000), (314, 670000), (335, 628000), (400, 525950), (500, 420760), (536, 392500), (625, 336608), (628, 335000), (670, 314000), (785, 268000), (800, 262975), (1000, 210380), (1072, 196250), (1250, 168304), (1256, 167500), (1340, 157000), (1570, 134000), (1675, 125600), (2000, 105190), (2144, 98125), (2500, 84152), (2512, 83750), (2680, 78500), (3140, 67000), (3350, 62800), (3925, 53600), (4000, 52595), (5000, 42076), (5024, 41875), (5360, 39250), (6280, 33500), (6700, 31400), (7850, 26800), (8375, 25120), (10000, 21038), (10519, 20000), (10720, 19625), (12560, 16750), (13400, 15700)]