20344517095

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1\times {\mathrm{647}}^1$

素因数の和:1160

約数の個数: 64

約数和(自身を含む): 29314400256

約数和(自身を除く): 8969883161

約数列:

[1, 5, 7, 31, 35, 73, 155, 217, 365, 397, 511, 647, 1085, 1985, 2263, 2555, 2779, 3235, 4529, 11315, 12307, 13895, 15841, 20057, 22645, 28981, 47231, 61535, 79205, 86149, 100285, 140399, 144905, 202867, 236155, 256859, 330617, 430745, 701995, 898411, 1014335, 1284295, 1464161, 1653085, 1798013, 4492055, 6288877, 7320805, 7962629, 8990065, 10249127, 18750707, 31444385, 39813145, 51245635, 55738403, 93753535, 131254949, 278692015, 581271917, 656274745, 2906359585, 4068903419, 20344517095]

約数ペア:

[(1, 20344517095), (5, 4068903419), (7, 2906359585), (31, 656274745), (35, 581271917), (73, 278692015), (155, 131254949), (217, 93753535), (365, 55738403), (397, 51245635), (511, 39813145), (647, 31444385), (1085, 18750707), (1985, 10249127), (2263, 8990065), (2555, 7962629), (2779, 7320805), (3235, 6288877), (4529, 4492055), (11315, 1798013), (12307, 1653085), (13895, 1464161), (15841, 1284295), (20057, 1014335), (22645, 898411), (28981, 701995), (47231, 430745), (61535, 330617), (79205, 256859), (86149, 236155), (100285, 202867), (140399, 144905)]