1223750500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:483

約数の個数: 144

約数和(自身を含む): 3137097600

約数和(自身を除く): 1913347100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 199, 245, 250, 251, 350, 398, 490, 500, 502, 700, 796, 875, 980, 995, 1004, 1225, 1255, 1393, 1750, 1757, 1990, 2450, 2510, 2786, 3500, 3514, 3980, 4900, 4975, 5020, 5572, 6125, 6275, 6965, 7028, 8785, 9751, 9950, 12250, 12299, 12550, 13930, 17570, 19502, 19900, 24500, 24598, 24875, 25100, 27860, 31375, 34825, 35140, 39004, 43925, 48755, 49196, 49750, 49949, 61495, 62750, 69650, 87850, 97510, 99500, 99898, 122990, 125500, 139300, 174125, 175700, 195020, 199796, 219625, 243775, 245980, 249745, 307475, 348250, 349643, 439250, 487550, 499490, 614950, 696500, 699286, 878500, 975100, 998980, 1218875, 1229900, 1248725, 1398572, 1537375, 1748215, 2437750, 2447501, 2497450, 3074750, 3496430, 4875500, 4895002, 4994900, 6149500, 6243625, 6992860, 8741075, 9790004, 12237505, 12487250, 17482150, 24475010, 24974500, 34964300, 43705375, 48950020, 61187525, 87410750, 122375050, 174821500, 244750100, 305937625, 611875250, 1223750500]

約数ペア:

[(1, 1223750500), (2, 611875250), (4, 305937625), (5, 244750100), (7, 174821500), (10, 122375050), (14, 87410750), (20, 61187525), (25, 48950020), (28, 43705375), (35, 34964300), (49, 24974500), (50, 24475010), (70, 17482150), (98, 12487250), (100, 12237505), (125, 9790004), (140, 8741075), (175, 6992860), (196, 6243625), (199, 6149500), (245, 4994900), (250, 4895002), (251, 4875500), (350, 3496430), (398, 3074750), (490, 2497450), (500, 2447501), (502, 2437750), (700, 1748215), (796, 1537375), (875, 1398572), (980, 1248725), (995, 1229900), (1004, 1218875), (1225, 998980), (1255, 975100), (1393, 878500), (1750, 699286), (1757, 696500), (1990, 614950), (2450, 499490), (2510, 487550), (2786, 439250), (3500, 349643), (3514, 348250), (3980, 307475), (4900, 249745), (4975, 245980), (5020, 243775), (5572, 219625), (6125, 199796), (6275, 195020), (6965, 175700), (7028, 174125), (8785, 139300), (9751, 125500), (9950, 122990), (12250, 99898), (12299, 99500), (12550, 97510), (13930, 87850), (17570, 69650), (19502, 62750), (19900, 61495), (24500, 49949), (24598, 49750), (24875, 49196), (25100, 48755), (27860, 43925), (31375, 39004), (34825, 35140)]