20245108

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 41520640

約数和(自身を除く): 21275532

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 661, 806, 988, 1178, 1322, 1612, 2356, 2644, 7657, 8593, 12559, 15314, 17186, 20491, 25118, 30628, 34372, 40982, 50236, 81964, 163267, 266383, 326534, 389329, 532766, 653068, 778658, 1065532, 1557316, 5061277, 10122554, 20245108]

約数ペア:

[(1, 20245108), (2, 10122554), (4, 5061277), (13, 1557316), (19, 1065532), (26, 778658), (31, 653068), (38, 532766), (52, 389329), (62, 326534), (76, 266383), (124, 163267), (247, 81964), (403, 50236), (494, 40982), (589, 34372), (661, 30628), (806, 25118), (988, 20491), (1178, 17186), (1322, 15314), (1612, 12559), (2356, 8593), (2644, 7657)]