1285335740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1531}}^1\times {\mathrm{3229}}^1$

素因数の和:4782

約数の個数: 48

約数和(自身を含む): 2909635680

約数和(自身を除く): 1624299940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1531, 3062, 3229, 6124, 6458, 7655, 12916, 15310, 16145, 19903, 30620, 32290, 39806, 41977, 64580, 79612, 83954, 99515, 167908, 199030, 209885, 398060, 419770, 839540, 4943599, 9887198, 19774396, 24717995, 49435990, 64266787, 98871980, 128533574, 257067148, 321333935, 642667870, 1285335740]

約数ペア:

[(1, 1285335740), (2, 642667870), (4, 321333935), (5, 257067148), (10, 128533574), (13, 98871980), (20, 64266787), (26, 49435990), (52, 24717995), (65, 19774396), (130, 9887198), (260, 4943599), (1531, 839540), (3062, 419770), (3229, 398060), (6124, 209885), (6458, 199030), (7655, 167908), (12916, 99515), (15310, 83954), (16145, 79612), (19903, 64580), (30620, 41977), (32290, 39806)]