20178872812

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1\times {\mathrm{8171}}^1$

素因数の和:9262

約数の個数: 48

約数和(自身を含む): 40857384960

約数和(自身を除く): 20678512148

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 991, 1246, 1982, 2492, 3964, 6937, 8171, 13874, 16342, 27748, 32684, 57197, 88199, 114394, 176398, 228788, 352796, 617393, 727219, 1234786, 1454438, 2469572, 2908876, 5090533, 8097461, 10181066, 16194922, 20362132, 32389844, 56682227, 113364454, 226728908, 720674029, 1441348058, 2882696116, 5044718203, 10089436406, 20178872812]

約数ペア:

[(1, 20178872812), (2, 10089436406), (4, 5044718203), (7, 2882696116), (14, 1441348058), (28, 720674029), (89, 226728908), (178, 113364454), (356, 56682227), (623, 32389844), (991, 20362132), (1246, 16194922), (1982, 10181066), (2492, 8097461), (3964, 5090533), (6937, 2908876), (8171, 2469572), (13874, 1454438), (16342, 1234786), (27748, 727219), (32684, 617393), (57197, 352796), (88199, 228788), (114394, 176398)]