131432840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:475

約数の個数: 128

約数和(自身を含む): 372556800

約数和(自身を除く): 241123960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 139, 140, 154, 220, 278, 280, 307, 308, 385, 440, 556, 614, 616, 695, 770, 973, 1112, 1228, 1390, 1529, 1535, 1540, 1946, 2149, 2456, 2780, 3058, 3070, 3080, 3377, 3892, 4298, 4865, 5560, 6116, 6140, 6754, 7645, 7784, 8596, 9730, 10703, 10745, 12232, 12280, 13508, 15290, 16885, 17192, 19460, 21406, 21490, 23639, 27016, 30580, 33770, 38920, 42673, 42812, 42980, 47278, 53515, 61160, 67540, 85346, 85624, 85960, 94556, 107030, 118195, 135080, 170692, 189112, 213365, 214060, 236390, 298711, 341384, 426730, 428120, 469403, 472780, 597422, 853460, 938806, 945560, 1194844, 1493555, 1706920, 1877612, 2347015, 2389688, 2987110, 3285821, 3755224, 4694030, 5974220, 6571642, 9388060, 11948440, 13143284, 16429105, 18776120, 26286568, 32858210, 65716420, 131432840]

約数ペア:

[(1, 131432840), (2, 65716420), (4, 32858210), (5, 26286568), (7, 18776120), (8, 16429105), (10, 13143284), (11, 11948440), (14, 9388060), (20, 6571642), (22, 5974220), (28, 4694030), (35, 3755224), (40, 3285821), (44, 2987110), (55, 2389688), (56, 2347015), (70, 1877612), (77, 1706920), (88, 1493555), (110, 1194844), (139, 945560), (140, 938806), (154, 853460), (220, 597422), (278, 472780), (280, 469403), (307, 428120), (308, 426730), (385, 341384), (440, 298711), (556, 236390), (614, 214060), (616, 213365), (695, 189112), (770, 170692), (973, 135080), (1112, 118195), (1228, 107030), (1390, 94556), (1529, 85960), (1535, 85624), (1540, 85346), (1946, 67540), (2149, 61160), (2456, 53515), (2780, 47278), (3058, 42980), (3070, 42812), (3080, 42673), (3377, 38920), (3892, 33770), (4298, 30580), (4865, 27016), (5560, 23639), (6116, 21490), (6140, 21406), (6754, 19460), (7645, 17192), (7784, 16885), (8596, 15290), (9730, 13508), (10703, 12280), (10745, 12232)]