20542528

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:347

約数の個数: 56

約数和(自身を含む): 43891200

約数和(自身を除く): 23348672

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 79, 136, 158, 239, 272, 316, 478, 544, 632, 956, 1088, 1264, 1343, 1912, 2528, 2686, 3824, 4063, 5056, 5372, 7648, 8126, 10744, 15296, 16252, 18881, 21488, 32504, 37762, 42976, 65008, 75524, 85952, 130016, 151048, 260032, 302096, 320977, 604192, 641954, 1208384, 1283908, 2567816, 5135632, 10271264, 20542528]

約数ペア:

[(1, 20542528), (2, 10271264), (4, 5135632), (8, 2567816), (16, 1283908), (17, 1208384), (32, 641954), (34, 604192), (64, 320977), (68, 302096), (79, 260032), (136, 151048), (158, 130016), (239, 85952), (272, 75524), (316, 65008), (478, 42976), (544, 37762), (632, 32504), (956, 21488), (1088, 18881), (1264, 16252), (1343, 15296), (1912, 10744), (2528, 8126), (2686, 7648), (3824, 5372), (4063, 5056)]