20104080416

素因数分解:

$2^5\times 7^1\times {\mathrm{53}}^2\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:571

約数の個数: 144

約数和(自身を含む): 46751644800

約数和(自身を除く): 26647564384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 89, 106, 112, 178, 212, 224, 356, 359, 371, 424, 623, 712, 718, 742, 848, 1246, 1424, 1436, 1484, 1696, 2492, 2513, 2809, 2848, 2872, 2968, 4717, 4984, 5026, 5618, 5744, 5936, 9434, 9968, 10052, 11236, 11488, 11872, 18868, 19027, 19663, 19936, 20104, 22472, 31951, 33019, 37736, 38054, 39326, 40208, 44944, 63902, 66038, 75472, 76108, 78652, 80416, 89888, 127804, 132076, 133189, 150944, 152216, 157304, 223657, 250001, 255608, 264152, 266378, 304432, 314608, 447314, 500002, 511216, 528304, 532756, 608864, 629216, 894628, 1000004, 1008431, 1022432, 1056608, 1065512, 1693403, 1750007, 1789256, 2000008, 2016862, 2131024, 3386806, 3500014, 3578512, 4000016, 4033724, 4262048, 6773612, 7000028, 7059017, 7157024, 8000032, 8067448, 11853821, 13547224, 14000056, 14118034, 16134896, 23707642, 27094448, 28000112, 28236068, 32269792, 47415284, 54188896, 56000224, 56472136, 89750359, 94830568, 112944272, 179500718, 189661136, 225888544, 359001436, 379322272, 628252513, 718002872, 1256505026, 1436005744, 2513010052, 2872011488, 5026020104, 10052040208, 20104080416]

約数ペア:

[(1, 20104080416), (2, 10052040208), (4, 5026020104), (7, 2872011488), (8, 2513010052), (14, 1436005744), (16, 1256505026), (28, 718002872), (32, 628252513), (53, 379322272), (56, 359001436), (89, 225888544), (106, 189661136), (112, 179500718), (178, 112944272), (212, 94830568), (224, 89750359), (356, 56472136), (359, 56000224), (371, 54188896), (424, 47415284), (623, 32269792), (712, 28236068), (718, 28000112), (742, 27094448), (848, 23707642), (1246, 16134896), (1424, 14118034), (1436, 14000056), (1484, 13547224), (1696, 11853821), (2492, 8067448), (2513, 8000032), (2809, 7157024), (2848, 7059017), (2872, 7000028), (2968, 6773612), (4717, 4262048), (4984, 4033724), (5026, 4000016), (5618, 3578512), (5744, 3500014), (5936, 3386806), (9434, 2131024), (9968, 2016862), (10052, 2000008), (11236, 1789256), (11488, 1750007), (11872, 1693403), (18868, 1065512), (19027, 1056608), (19663, 1022432), (19936, 1008431), (20104, 1000004), (22472, 894628), (31951, 629216), (33019, 608864), (37736, 532756), (38054, 528304), (39326, 511216), (40208, 500002), (44944, 447314), (63902, 314608), (66038, 304432), (75472, 266378), (76108, 264152), (78652, 255608), (80416, 250001), (89888, 223657), (127804, 157304), (132076, 152216), (133189, 150944)]