20165287460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{12547}}^1$

素因数の和:12765

約数の個数: 96

約数和(自身を含む): 46672536960

約数和(自身を除く): 26507249500

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 163, 170, 290, 326, 340, 493, 580, 652, 815, 986, 1630, 1972, 2465, 2771, 3260, 4727, 4930, 5542, 9454, 9860, 11084, 12547, 13855, 18908, 23635, 25094, 27710, 47270, 50188, 55420, 62735, 80359, 94540, 125470, 160718, 213299, 250940, 321436, 363863, 401795, 426598, 727726, 803590, 853196, 1066495, 1455452, 1607180, 1819315, 2045161, 2132990, 3638630, 4090322, 4265980, 6185671, 7277260, 8180644, 10225805, 12371342, 20451610, 24742684, 30928355, 34767737, 40903220, 59309669, 61856710, 69535474, 118619338, 123713420, 139070948, 173838685, 237238676, 296548345, 347677370, 593096690, 695354740, 1008264373, 1186193380, 2016528746, 4033057492, 5041321865, 10082643730, 20165287460]

約数ペア:

[(1, 20165287460), (2, 10082643730), (4, 5041321865), (5, 4033057492), (10, 2016528746), (17, 1186193380), (20, 1008264373), (29, 695354740), (34, 593096690), (58, 347677370), (68, 296548345), (85, 237238676), (116, 173838685), (145, 139070948), (163, 123713420), (170, 118619338), (290, 69535474), (326, 61856710), (340, 59309669), (493, 40903220), (580, 34767737), (652, 30928355), (815, 24742684), (986, 20451610), (1630, 12371342), (1972, 10225805), (2465, 8180644), (2771, 7277260), (3260, 6185671), (4727, 4265980), (4930, 4090322), (5542, 3638630), (9454, 2132990), (9860, 2045161), (11084, 1819315), (12547, 1607180), (13855, 1455452), (18908, 1066495), (23635, 853196), (25094, 803590), (27710, 727726), (47270, 426598), (50188, 401795), (55420, 363863), (62735, 321436), (80359, 250940), (94540, 213299), (125470, 160718)]