49988800

素因数分解:

$2^6\times 5^2\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:378

約数の個数: 84

約数和(自身を含む): 124409200

約数和(自身を除く): 74420400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 157, 160, 199, 200, 314, 320, 398, 400, 628, 785, 796, 800, 995, 1256, 1570, 1592, 1600, 1990, 2512, 3140, 3184, 3925, 3980, 4975, 5024, 6280, 6368, 7850, 7960, 9950, 10048, 12560, 12736, 15700, 15920, 19900, 25120, 31243, 31400, 31840, 39800, 50240, 62486, 62800, 63680, 79600, 124972, 125600, 156215, 159200, 249944, 251200, 312430, 318400, 499888, 624860, 781075, 999776, 1249720, 1562150, 1999552, 2499440, 3124300, 4998880, 6248600, 9997760, 12497200, 24994400, 49988800]

約数ペア:

[(1, 49988800), (2, 24994400), (4, 12497200), (5, 9997760), (8, 6248600), (10, 4998880), (16, 3124300), (20, 2499440), (25, 1999552), (32, 1562150), (40, 1249720), (50, 999776), (64, 781075), (80, 624860), (100, 499888), (157, 318400), (160, 312430), (199, 251200), (200, 249944), (314, 159200), (320, 156215), (398, 125600), (400, 124972), (628, 79600), (785, 63680), (796, 62800), (800, 62486), (995, 50240), (1256, 39800), (1570, 31840), (1592, 31400), (1600, 31243), (1990, 25120), (2512, 19900), (3140, 15920), (3184, 15700), (3925, 12736), (3980, 12560), (4975, 10048), (5024, 9950), (6280, 7960), (6368, 7850)]