20164343780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2207}}^1\times {\mathrm{9323}}^1$

素因数の和:11553

約数の個数: 72

約数和(自身を含む): 49286216448

約数和(自身を除く): 29121872668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2207, 4414, 8828, 9323, 11035, 15449, 18646, 22070, 30898, 37292, 44140, 46615, 61796, 65261, 77245, 93230, 108143, 130522, 154490, 186460, 216286, 261044, 308980, 326305, 432572, 456827, 540715, 652610, 913654, 1081430, 1305220, 1827308, 2162860, 2284135, 4568270, 9136540, 20575861, 41151722, 82303444, 102879305, 144031027, 205758610, 288062054, 411517220, 576124108, 720155135, 1008217189, 1440310270, 2016434378, 2880620540, 4032868756, 5041085945, 10082171890, 20164343780]

約数ペア:

[(1, 20164343780), (2, 10082171890), (4, 5041085945), (5, 4032868756), (7, 2880620540), (10, 2016434378), (14, 1440310270), (20, 1008217189), (28, 720155135), (35, 576124108), (49, 411517220), (70, 288062054), (98, 205758610), (140, 144031027), (196, 102879305), (245, 82303444), (490, 41151722), (980, 20575861), (2207, 9136540), (4414, 4568270), (8828, 2284135), (9323, 2162860), (11035, 1827308), (15449, 1305220), (18646, 1081430), (22070, 913654), (30898, 652610), (37292, 540715), (44140, 456827), (46615, 432572), (61796, 326305), (65261, 308980), (77245, 261044), (93230, 216286), (108143, 186460), (130522, 154490)]