388762940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 855807120

約数和(自身を除く): 467044180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 113, 124, 155, 179, 226, 310, 358, 452, 565, 620, 716, 895, 961, 1130, 1790, 1922, 2260, 3503, 3580, 3844, 4805, 5549, 7006, 9610, 11098, 14012, 17515, 19220, 20227, 22196, 27745, 35030, 40454, 55490, 70060, 80908, 101135, 108593, 110980, 172019, 202270, 217186, 344038, 404540, 434372, 542965, 627037, 688076, 860095, 1085930, 1254074, 1720190, 2171860, 2508148, 3135185, 3440380, 6270370, 12540740, 19438147, 38876294, 77752588, 97190735, 194381470, 388762940]

約数ペア:

[(1, 388762940), (2, 194381470), (4, 97190735), (5, 77752588), (10, 38876294), (20, 19438147), (31, 12540740), (62, 6270370), (113, 3440380), (124, 3135185), (155, 2508148), (179, 2171860), (226, 1720190), (310, 1254074), (358, 1085930), (452, 860095), (565, 688076), (620, 627037), (716, 542965), (895, 434372), (961, 404540), (1130, 344038), (1790, 217186), (1922, 202270), (2260, 172019), (3503, 110980), (3580, 108593), (3844, 101135), (4805, 80908), (5549, 70060), (7006, 55490), (9610, 40454), (11098, 35030), (14012, 27745), (17515, 22196), (19220, 20227)]