20666048

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:505

約数の個数: 56

約数和(自身を含む): 45018960

約数和(自身を除く): 24352912

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 64, 104, 118, 208, 236, 416, 421, 472, 767, 832, 842, 944, 1534, 1684, 1888, 3068, 3368, 3776, 5473, 6136, 6736, 10946, 12272, 13472, 21892, 24544, 24839, 26944, 43784, 49088, 49678, 87568, 99356, 175136, 198712, 322907, 350272, 397424, 645814, 794848, 1291628, 1589696, 2583256, 5166512, 10333024, 20666048]

約数ペア:

[(1, 20666048), (2, 10333024), (4, 5166512), (8, 2583256), (13, 1589696), (16, 1291628), (26, 794848), (32, 645814), (52, 397424), (59, 350272), (64, 322907), (104, 198712), (118, 175136), (208, 99356), (236, 87568), (416, 49678), (421, 49088), (472, 43784), (767, 26944), (832, 24839), (842, 24544), (944, 21892), (1534, 13472), (1684, 12272), (1888, 10946), (3068, 6736), (3368, 6136), (3776, 5473)]