20163744895

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:712

約数の個数: 64

約数和(自身を含む): 28510175232

約数和(自身を除く): 8346430337

約数列:

[1, 5, 7, 35, 61, 191, 197, 251, 305, 427, 955, 985, 1255, 1337, 1379, 1757, 2135, 6685, 6895, 8785, 11651, 12017, 15311, 37627, 47941, 49447, 58255, 60085, 76555, 81557, 84119, 107177, 188135, 239705, 247235, 263389, 335587, 346129, 407785, 420595, 535885, 1316945, 1677935, 1730645, 2295247, 2924401, 3016267, 9444377, 11476235, 14622005, 15081335, 16066729, 20470807, 21113869, 47221885, 66110639, 80333645, 102354035, 105569345, 330553195, 576106997, 2880534985, 4032748979, 20163744895]

約数ペア:

[(1, 20163744895), (5, 4032748979), (7, 2880534985), (35, 576106997), (61, 330553195), (191, 105569345), (197, 102354035), (251, 80333645), (305, 66110639), (427, 47221885), (955, 21113869), (985, 20470807), (1255, 16066729), (1337, 15081335), (1379, 14622005), (1757, 11476235), (2135, 9444377), (6685, 3016267), (6895, 2924401), (8785, 2295247), (11651, 1730645), (12017, 1677935), (15311, 1316945), (37627, 535885), (47941, 420595), (49447, 407785), (58255, 346129), (60085, 335587), (76555, 263389), (81557, 247235), (84119, 239705), (107177, 188135)]