17967900620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{20639}}^1$

素因数の和:20775

約数の個数: 96

約数和(自身を含む): 41610240000

約数和(自身を除く): 23642339380

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 79, 95, 116, 145, 158, 190, 290, 316, 380, 395, 551, 580, 790, 1102, 1501, 1580, 2204, 2291, 2755, 3002, 4582, 5510, 6004, 7505, 9164, 11020, 11455, 15010, 20639, 22910, 30020, 41278, 43529, 45820, 82556, 87058, 103195, 174116, 206390, 217645, 392141, 412780, 435290, 598531, 784282, 870580, 1197062, 1568564, 1630481, 1960705, 2394124, 2992655, 3260962, 3921410, 5985310, 6521924, 7842820, 8152405, 11372089, 11970620, 16304810, 22744178, 30979139, 32609620, 45488356, 47283949, 56860445, 61958278, 94567898, 113720890, 123916556, 154895695, 189135796, 227441780, 236419745, 309791390, 472839490, 619582780, 898395031, 945678980, 1796790062, 3593580124, 4491975155, 8983950310, 17967900620]

約数ペア:

[(1, 17967900620), (2, 8983950310), (4, 4491975155), (5, 3593580124), (10, 1796790062), (19, 945678980), (20, 898395031), (29, 619582780), (38, 472839490), (58, 309791390), (76, 236419745), (79, 227441780), (95, 189135796), (116, 154895695), (145, 123916556), (158, 113720890), (190, 94567898), (290, 61958278), (316, 56860445), (380, 47283949), (395, 45488356), (551, 32609620), (580, 30979139), (790, 22744178), (1102, 16304810), (1501, 11970620), (1580, 11372089), (2204, 8152405), (2291, 7842820), (2755, 6521924), (3002, 5985310), (4582, 3921410), (5510, 3260962), (6004, 2992655), (7505, 2394124), (9164, 1960705), (11020, 1630481), (11455, 1568564), (15010, 1197062), (20639, 870580), (22910, 784282), (30020, 598531), (41278, 435290), (43529, 412780), (45820, 392141), (82556, 217645), (87058, 206390), (103195, 174116)]