80978380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4349}}^1$

素因数の和:4391

約数の個数: 72

約数和(自身を含む): 208278000

約数和(自身を除く): 127299620

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4349, 4655, 8698, 9310, 17396, 18620, 21745, 30443, 43490, 60886, 82631, 86980, 121772, 152215, 165262, 213101, 304430, 330524, 413155, 426202, 578417, 608860, 826310, 852404, 1065505, 1156834, 1652620, 2131010, 2313668, 2892085, 4048919, 4262020, 5784170, 8097838, 11568340, 16195676, 20244595, 40489190, 80978380]

約数ペア:

[(1, 80978380), (2, 40489190), (4, 20244595), (5, 16195676), (7, 11568340), (10, 8097838), (14, 5784170), (19, 4262020), (20, 4048919), (28, 2892085), (35, 2313668), (38, 2131010), (49, 1652620), (70, 1156834), (76, 1065505), (95, 852404), (98, 826310), (133, 608860), (140, 578417), (190, 426202), (196, 413155), (245, 330524), (266, 304430), (380, 213101), (490, 165262), (532, 152215), (665, 121772), (931, 86980), (980, 82631), (1330, 60886), (1862, 43490), (2660, 30443), (3724, 21745), (4349, 18620), (4655, 17396), (8698, 9310)]