168814840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1249}}^1$

素因数の和:1400

約数の個数: 64

約数和(自身を含む): 396000000

約数和(自身を除く): 227185160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 109, 124, 155, 218, 248, 310, 436, 545, 620, 872, 1090, 1240, 1249, 2180, 2498, 3379, 4360, 4996, 6245, 6758, 9992, 12490, 13516, 16895, 24980, 27032, 33790, 38719, 49960, 67580, 77438, 135160, 136141, 154876, 193595, 272282, 309752, 387190, 544564, 680705, 774380, 1089128, 1361410, 1548760, 2722820, 4220371, 5445640, 8440742, 16881484, 21101855, 33762968, 42203710, 84407420, 168814840]

約数ペア:

[(1, 168814840), (2, 84407420), (4, 42203710), (5, 33762968), (8, 21101855), (10, 16881484), (20, 8440742), (31, 5445640), (40, 4220371), (62, 2722820), (109, 1548760), (124, 1361410), (155, 1089128), (218, 774380), (248, 680705), (310, 544564), (436, 387190), (545, 309752), (620, 272282), (872, 193595), (1090, 154876), (1240, 136141), (1249, 135160), (2180, 77438), (2498, 67580), (3379, 49960), (4360, 38719), (4996, 33790), (6245, 27032), (6758, 24980), (9992, 16895), (12490, 13516)]