12918092005

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{31511}}^1$

素因数の和:31606

約数の個数: 64

約数和(自身を含む): 20583134208

約数和(自身を除く): 7665042203

約数列:

[1, 5, 7, 13, 17, 35, 53, 65, 85, 91, 119, 221, 265, 371, 455, 595, 689, 901, 1105, 1547, 1855, 3445, 4505, 4823, 6307, 7735, 11713, 24115, 31511, 31535, 58565, 81991, 157555, 220577, 409643, 409955, 535687, 1102885, 1670083, 2048215, 2678435, 2867501, 3749809, 6963931, 8350415, 11690581, 14337505, 18749045, 21711079, 28391411, 34819655, 48747517, 58452905, 108555395, 141957055, 151977553, 198739877, 243737585, 369088343, 759887765, 993699385, 1845441715, 2583618401, 12918092005]

約数ペア:

[(1, 12918092005), (5, 2583618401), (7, 1845441715), (13, 993699385), (17, 759887765), (35, 369088343), (53, 243737585), (65, 198739877), (85, 151977553), (91, 141957055), (119, 108555395), (221, 58452905), (265, 48747517), (371, 34819655), (455, 28391411), (595, 21711079), (689, 18749045), (901, 14337505), (1105, 11690581), (1547, 8350415), (1855, 6963931), (3445, 3749809), (4505, 2867501), (4823, 2678435), (6307, 2048215), (7735, 1670083), (11713, 1102885), (24115, 535687), (31511, 409955), (31535, 409643), (58565, 220577), (81991, 157555)]