28556500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 73382400

約数和(自身を除く): 44825900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 125, 140, 164, 175, 199, 205, 250, 287, 350, 398, 410, 500, 574, 700, 796, 820, 875, 995, 1025, 1148, 1393, 1435, 1750, 1990, 2050, 2786, 2870, 3500, 3980, 4100, 4975, 5125, 5572, 5740, 6965, 7175, 8159, 9950, 10250, 13930, 14350, 16318, 19900, 20500, 24875, 27860, 28700, 32636, 34825, 35875, 40795, 49750, 57113, 69650, 71750, 81590, 99500, 114226, 139300, 143500, 163180, 174125, 203975, 228452, 285565, 348250, 407950, 571130, 696500, 815900, 1019875, 1142260, 1427825, 2039750, 2855650, 4079500, 5711300, 7139125, 14278250, 28556500]

約数ペア:

[(1, 28556500), (2, 14278250), (4, 7139125), (5, 5711300), (7, 4079500), (10, 2855650), (14, 2039750), (20, 1427825), (25, 1142260), (28, 1019875), (35, 815900), (41, 696500), (50, 571130), (70, 407950), (82, 348250), (100, 285565), (125, 228452), (140, 203975), (164, 174125), (175, 163180), (199, 143500), (205, 139300), (250, 114226), (287, 99500), (350, 81590), (398, 71750), (410, 69650), (500, 57113), (574, 49750), (700, 40795), (796, 35875), (820, 34825), (875, 32636), (995, 28700), (1025, 27860), (1148, 24875), (1393, 20500), (1435, 19900), (1750, 16318), (1990, 14350), (2050, 13930), (2786, 10250), (2870, 9950), (3500, 8159), (3980, 7175), (4100, 6965), (4975, 5740), (5125, 5572)]