39980720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1039}}^1$

素因数の和:1102

約数の個数: 80

約数和(自身を含む): 102910080

約数和(自身を除く): 62929360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 370, 481, 520, 592, 740, 962, 1039, 1040, 1480, 1924, 2078, 2405, 2960, 3848, 4156, 4810, 5195, 7696, 8312, 9620, 10390, 13507, 16624, 19240, 20780, 27014, 38443, 38480, 41560, 54028, 67535, 76886, 83120, 108056, 135070, 153772, 192215, 216112, 270140, 307544, 384430, 499759, 540280, 615088, 768860, 999518, 1080560, 1537720, 1999036, 2498795, 3075440, 3998072, 4997590, 7996144, 9995180, 19990360, 39980720]

約数ペア:

[(1, 39980720), (2, 19990360), (4, 9995180), (5, 7996144), (8, 4997590), (10, 3998072), (13, 3075440), (16, 2498795), (20, 1999036), (26, 1537720), (37, 1080560), (40, 999518), (52, 768860), (65, 615088), (74, 540280), (80, 499759), (104, 384430), (130, 307544), (148, 270140), (185, 216112), (208, 192215), (260, 153772), (296, 135070), (370, 108056), (481, 83120), (520, 76886), (592, 67535), (740, 54028), (962, 41560), (1039, 38480), (1040, 38443), (1480, 27014), (1924, 20780), (2078, 19240), (2405, 16624), (2960, 13507), (3848, 10390), (4156, 9620), (4810, 8312), (5195, 7696)]