20039936

素因数分解:

$2^8\times 7^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 46799424

約数和(自身を除く): 26759488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 211, 212, 224, 256, 371, 422, 424, 448, 742, 844, 848, 896, 1477, 1484, 1688, 1696, 1792, 2954, 2968, 3376, 3392, 5908, 5936, 6752, 6784, 11183, 11816, 11872, 13504, 13568, 22366, 23632, 23744, 27008, 44732, 47264, 47488, 54016, 78281, 89464, 94528, 94976, 156562, 178928, 189056, 313124, 357856, 378112, 626248, 715712, 1252496, 1431424, 2504992, 2862848, 5009984, 10019968, 20039936]

約数ペア:

[(1, 20039936), (2, 10019968), (4, 5009984), (7, 2862848), (8, 2504992), (14, 1431424), (16, 1252496), (28, 715712), (32, 626248), (53, 378112), (56, 357856), (64, 313124), (106, 189056), (112, 178928), (128, 156562), (211, 94976), (212, 94528), (224, 89464), (256, 78281), (371, 54016), (422, 47488), (424, 47264), (448, 44732), (742, 27008), (844, 23744), (848, 23632), (896, 22366), (1477, 13568), (1484, 13504), (1688, 11872), (1696, 11816), (1792, 11183), (2954, 6784), (2968, 6752), (3376, 5936), (3392, 5908)]