2018889200

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:795

約数の個数: 120

約数和(自身を含む): 4998430080

約数和(自身を除く): 2979540880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 257, 328, 400, 410, 479, 514, 656, 820, 958, 1025, 1028, 1285, 1640, 1916, 2050, 2056, 2395, 2570, 3280, 3832, 4100, 4112, 4790, 5140, 6425, 7664, 8200, 9580, 10280, 10537, 11975, 12850, 16400, 19160, 19639, 20560, 21074, 23950, 25700, 38320, 39278, 42148, 47900, 51400, 52685, 78556, 84296, 95800, 98195, 102800, 105370, 123103, 157112, 168592, 191600, 196390, 210740, 246206, 263425, 314224, 392780, 421480, 490975, 492412, 526850, 615515, 785560, 842960, 981950, 984824, 1053700, 1231030, 1571120, 1963900, 1969648, 2107400, 2462060, 3077575, 3927800, 4214800, 4924120, 5047223, 6155150, 7855600, 9848240, 10094446, 12310300, 20188892, 24620600, 25236115, 40377784, 49241200, 50472230, 80755568, 100944460, 126180575, 201888920, 252361150, 403777840, 504722300, 1009444600, 2018889200]

約数ペア:

[(1, 2018889200), (2, 1009444600), (4, 504722300), (5, 403777840), (8, 252361150), (10, 201888920), (16, 126180575), (20, 100944460), (25, 80755568), (40, 50472230), (41, 49241200), (50, 40377784), (80, 25236115), (82, 24620600), (100, 20188892), (164, 12310300), (200, 10094446), (205, 9848240), (257, 7855600), (328, 6155150), (400, 5047223), (410, 4924120), (479, 4214800), (514, 3927800), (656, 3077575), (820, 2462060), (958, 2107400), (1025, 1969648), (1028, 1963900), (1285, 1571120), (1640, 1231030), (1916, 1053700), (2050, 984824), (2056, 981950), (2395, 842960), (2570, 785560), (3280, 615515), (3832, 526850), (4100, 492412), (4112, 490975), (4790, 421480), (5140, 392780), (6425, 314224), (7664, 263425), (8200, 246206), (9580, 210740), (10280, 196390), (10537, 191600), (11975, 168592), (12850, 157112), (16400, 123103), (19160, 105370), (19639, 102800), (20560, 98195), (21074, 95800), (23950, 84296), (25700, 78556), (38320, 52685), (39278, 51400), (42148, 47900)]