20807540065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{9199}}^1$

素因数の和:9346

約数の個数: 64

約数和(自身を含む): 30046464000

約数和(自身を除く): 9238923935

約数列:

[1, 5, 13, 17, 23, 65, 85, 89, 115, 221, 299, 391, 445, 1105, 1157, 1495, 1513, 1955, 2047, 5083, 5785, 7565, 9199, 10235, 19669, 25415, 26611, 34799, 45995, 98345, 119587, 133055, 156383, 173995, 211577, 452387, 597935, 781915, 818711, 1057885, 2032979, 2261935, 2750501, 3596809, 4093555, 10164895, 10643243, 13752505, 13918087, 17984045, 18830353, 46758517, 53216215, 69590435, 94151765, 180935131, 233792585, 244794589, 320116001, 904675655, 1223972945, 1600580005, 4161508013, 20807540065]

約数ペア:

[(1, 20807540065), (5, 4161508013), (13, 1600580005), (17, 1223972945), (23, 904675655), (65, 320116001), (85, 244794589), (89, 233792585), (115, 180935131), (221, 94151765), (299, 69590435), (391, 53216215), (445, 46758517), (1105, 18830353), (1157, 17984045), (1495, 13918087), (1513, 13752505), (1955, 10643243), (2047, 10164895), (5083, 4093555), (5785, 3596809), (7565, 2750501), (9199, 2261935), (10235, 2032979), (19669, 1057885), (25415, 818711), (26611, 781915), (34799, 597935), (45995, 452387), (98345, 211577), (119587, 173995), (133055, 156383)]