81865904

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{2267}}^1$

素因数の和:2373

約数の個数: 40

約数和(自身を含む): 165645648

約数和(自身を除く): 83779744

約数列:

[1, 2, 4, 8, 16, 37, 61, 74, 122, 148, 244, 296, 488, 592, 976, 2257, 2267, 4514, 4534, 9028, 9068, 18056, 18136, 36112, 36272, 83879, 138287, 167758, 276574, 335516, 553148, 671032, 1106296, 1342064, 2212592, 5116619, 10233238, 20466476, 40932952, 81865904]

約数ペア:

[(1, 81865904), (2, 40932952), (4, 20466476), (8, 10233238), (16, 5116619), (37, 2212592), (61, 1342064), (74, 1106296), (122, 671032), (148, 553148), (244, 335516), (296, 276574), (488, 167758), (592, 138287), (976, 83879), (2257, 36272), (2267, 36112), (4514, 18136), (4534, 18056), (9028, 9068)]