20532416

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:253

約数の個数: 56

約数和(自身を含む): 42915840

約数和(自身を除く): 22383424

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 79, 124, 131, 158, 248, 262, 316, 496, 524, 632, 992, 1048, 1264, 1984, 2096, 2449, 2528, 4061, 4192, 4898, 5056, 8122, 8384, 9796, 10349, 16244, 19592, 20698, 32488, 39184, 41396, 64976, 78368, 82792, 129952, 156736, 165584, 259904, 320819, 331168, 641638, 662336, 1283276, 2566552, 5133104, 10266208, 20532416]

約数ペア:

[(1, 20532416), (2, 10266208), (4, 5133104), (8, 2566552), (16, 1283276), (31, 662336), (32, 641638), (62, 331168), (64, 320819), (79, 259904), (124, 165584), (131, 156736), (158, 129952), (248, 82792), (262, 78368), (316, 64976), (496, 41396), (524, 39184), (632, 32488), (992, 20698), (1048, 19592), (1264, 16244), (1984, 10349), (2096, 9796), (2449, 8384), (2528, 8122), (4061, 5056), (4192, 4898)]