20212496444

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{97}}^1\times {\mathrm{8849}}^1$

素因数の和:9015

約数の個数: 72

約数和(自身を含む): 42303424800

約数和(自身を除く): 22090928356

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 97, 116, 194, 203, 388, 406, 679, 812, 841, 1358, 1682, 2716, 2813, 3364, 5626, 5887, 8849, 11252, 11774, 17698, 19691, 23548, 35396, 39382, 61943, 78764, 81577, 123886, 163154, 247772, 256621, 326308, 513242, 571039, 858353, 1026484, 1142078, 1716706, 1796347, 2284156, 3433412, 3592694, 6008471, 7185388, 7442009, 12016942, 14884018, 24033884, 24892237, 29768036, 49784474, 52094063, 99568948, 104188126, 174245659, 208376252, 348491318, 696982636, 721874873, 1443749746, 2887499492, 5053124111, 10106248222, 20212496444]

約数ペア:

[(1, 20212496444), (2, 10106248222), (4, 5053124111), (7, 2887499492), (14, 1443749746), (28, 721874873), (29, 696982636), (58, 348491318), (97, 208376252), (116, 174245659), (194, 104188126), (203, 99568948), (388, 52094063), (406, 49784474), (679, 29768036), (812, 24892237), (841, 24033884), (1358, 14884018), (1682, 12016942), (2716, 7442009), (2813, 7185388), (3364, 6008471), (5626, 3592694), (5887, 3433412), (8849, 2284156), (11252, 1796347), (11774, 1716706), (17698, 1142078), (19691, 1026484), (23548, 858353), (35396, 571039), (39382, 513242), (61943, 326308), (78764, 256621), (81577, 247772), (123886, 163154)]