207820515

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{433}}^1\times {\mathrm{653}}^1$

素因数の和:1108

約数の個数: 48

約数和(自身を含む): 388287648

約数和(自身を除く): 180467133

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 433, 653, 735, 1299, 1959, 2165, 3031, 3265, 4571, 6495, 9093, 9795, 13713, 15155, 21217, 22855, 31997, 45465, 63651, 68565, 95991, 106085, 159985, 282749, 318255, 479955, 848247, 1413745, 1979243, 4241235, 5937729, 9896215, 13854701, 29688645, 41564103, 69273505, 207820515]

約数ペア:

[(1, 207820515), (3, 69273505), (5, 41564103), (7, 29688645), (15, 13854701), (21, 9896215), (35, 5937729), (49, 4241235), (105, 1979243), (147, 1413745), (245, 848247), (433, 479955), (653, 318255), (735, 282749), (1299, 159985), (1959, 106085), (2165, 95991), (3031, 68565), (3265, 63651), (4571, 45465), (6495, 31997), (9093, 22855), (9795, 21217), (13713, 15155)]