20181700805

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 29630748672

約数和(自身を除く): 9449047867

約数列:

[1, 5, 7, 35, 41, 49, 67, 157, 191, 205, 245, 287, 335, 469, 785, 955, 1099, 1337, 1435, 2009, 2345, 2747, 3283, 5495, 6437, 6685, 7693, 7831, 9359, 10045, 10519, 12797, 13735, 16415, 19229, 29987, 32185, 38465, 39155, 45059, 46795, 52595, 54817, 63985, 73633, 89579, 96145, 134603, 149935, 209909, 225295, 274085, 315413, 368165, 383719, 431279, 447895, 515431, 524677, 627053, 673015, 1049545, 1229467, 1469363, 1577065, 1918595, 2009129, 2156395, 2577155, 2623385, 3018953, 3135265, 3672739, 6147335, 7346815, 8606269, 10045645, 14063903, 15094765, 18363695, 21132671, 25709173, 43031345, 60243883, 70319515, 82374289, 98447321, 105663355, 128545865, 301219415, 411871445, 492236605, 576620023, 2883100115, 4036340161, 20181700805]

約数ペア:

[(1, 20181700805), (5, 4036340161), (7, 2883100115), (35, 576620023), (41, 492236605), (49, 411871445), (67, 301219415), (157, 128545865), (191, 105663355), (205, 98447321), (245, 82374289), (287, 70319515), (335, 60243883), (469, 43031345), (785, 25709173), (955, 21132671), (1099, 18363695), (1337, 15094765), (1435, 14063903), (2009, 10045645), (2345, 8606269), (2747, 7346815), (3283, 6147335), (5495, 3672739), (6437, 3135265), (6685, 3018953), (7693, 2623385), (7831, 2577155), (9359, 2156395), (10045, 2009129), (10519, 1918595), (12797, 1577065), (13735, 1469363), (16415, 1229467), (19229, 1049545), (29987, 673015), (32185, 627053), (38465, 524677), (39155, 515431), (45059, 447895), (46795, 431279), (52595, 383719), (54817, 368165), (63985, 315413), (73633, 274085), (89579, 225295), (96145, 209909), (134603, 149935)]