20438712

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 43583688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 107, 126, 168, 214, 252, 321, 379, 428, 504, 642, 749, 758, 856, 963, 1137, 1284, 1498, 1516, 1926, 2247, 2274, 2568, 2653, 2996, 3032, 3411, 3852, 4494, 4548, 5306, 5992, 6741, 6822, 7704, 7959, 8988, 9096, 10612, 13482, 13644, 15918, 17976, 21224, 23877, 26964, 27288, 31836, 40553, 47754, 53928, 63672, 81106, 95508, 121659, 162212, 191016, 243318, 283871, 324424, 364977, 486636, 567742, 729954, 851613, 973272, 1135484, 1459908, 1703226, 2270968, 2554839, 2919816, 3406452, 5109678, 6812904, 10219356, 20438712]

約数ペア:

[(1, 20438712), (2, 10219356), (3, 6812904), (4, 5109678), (6, 3406452), (7, 2919816), (8, 2554839), (9, 2270968), (12, 1703226), (14, 1459908), (18, 1135484), (21, 973272), (24, 851613), (28, 729954), (36, 567742), (42, 486636), (56, 364977), (63, 324424), (72, 283871), (84, 243318), (107, 191016), (126, 162212), (168, 121659), (214, 95508), (252, 81106), (321, 63672), (379, 53928), (428, 47754), (504, 40553), (642, 31836), (749, 27288), (758, 26964), (856, 23877), (963, 21224), (1137, 17976), (1284, 15918), (1498, 13644), (1516, 13482), (1926, 10612), (2247, 9096), (2274, 8988), (2568, 7959), (2653, 7704), (2996, 6822), (3032, 6741), (3411, 5992), (3852, 5306), (4494, 4548)]