20687084404

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{653}}^1$

素因数の和:918

約数の個数: 144

約数和(自身を含む): 45592485120

約数和(自身を除く): 24905400716

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 49, 76, 94, 98, 133, 181, 188, 196, 266, 329, 362, 532, 653, 658, 724, 893, 931, 1267, 1306, 1316, 1786, 1862, 2303, 2534, 2612, 3439, 3572, 3724, 4571, 4606, 5068, 6251, 6878, 8507, 8869, 9142, 9212, 12407, 12502, 13756, 17014, 17738, 18284, 24073, 24814, 25004, 30691, 31997, 34028, 35476, 43757, 48146, 49628, 59549, 61382, 63994, 86849, 87514, 96292, 118193, 119098, 122764, 127988, 161633, 168511, 173698, 175028, 214837, 236386, 238196, 323266, 337022, 347396, 416843, 429674, 472772, 583129, 607943, 646532, 674044, 827351, 833686, 859348, 1131431, 1166258, 1215886, 1503859, 1654702, 1667372, 2245667, 2262862, 2332516, 2431772, 3007718, 3309404, 4081903, 4491334, 4525724, 5555071, 5791457, 6015436, 7920017, 8163806, 8982668, 11110142, 11582914, 15719669, 15840034, 16327612, 22220284, 23165828, 28573321, 31439338, 31680068, 38885497, 57146642, 62878676, 77770994, 105546349, 110037683, 114293284, 155541988, 211092698, 220075366, 272198479, 422185396, 440150732, 544396958, 738824443, 1088793916, 1477648886, 2955297772, 5171771101, 10343542202, 20687084404]

約数ペア:

[(1, 20687084404), (2, 10343542202), (4, 5171771101), (7, 2955297772), (14, 1477648886), (19, 1088793916), (28, 738824443), (38, 544396958), (47, 440150732), (49, 422185396), (76, 272198479), (94, 220075366), (98, 211092698), (133, 155541988), (181, 114293284), (188, 110037683), (196, 105546349), (266, 77770994), (329, 62878676), (362, 57146642), (532, 38885497), (653, 31680068), (658, 31439338), (724, 28573321), (893, 23165828), (931, 22220284), (1267, 16327612), (1306, 15840034), (1316, 15719669), (1786, 11582914), (1862, 11110142), (2303, 8982668), (2534, 8163806), (2612, 7920017), (3439, 6015436), (3572, 5791457), (3724, 5555071), (4571, 4525724), (4606, 4491334), (5068, 4081903), (6251, 3309404), (6878, 3007718), (8507, 2431772), (8869, 2332516), (9142, 2262862), (9212, 2245667), (12407, 1667372), (12502, 1654702), (13756, 1503859), (17014, 1215886), (17738, 1166258), (18284, 1131431), (24073, 859348), (24814, 833686), (25004, 827351), (30691, 674044), (31997, 646532), (34028, 607943), (35476, 583129), (43757, 472772), (48146, 429674), (49628, 416843), (59549, 347396), (61382, 337022), (63994, 323266), (86849, 238196), (87514, 236386), (96292, 214837), (118193, 175028), (119098, 173698), (122764, 168511), (127988, 161633)]