20815552

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:293

約数の個数: 56

約数和(自身を含む): 43891200

約数和(自身を除く): 23075648

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 79, 92, 158, 179, 184, 316, 358, 368, 632, 716, 736, 1264, 1432, 1472, 1817, 2528, 2864, 3634, 4117, 5056, 5728, 7268, 8234, 11456, 14141, 14536, 16468, 28282, 29072, 32936, 56564, 58144, 65872, 113128, 116288, 131744, 226256, 263488, 325243, 452512, 650486, 905024, 1300972, 2601944, 5203888, 10407776, 20815552]

約数ペア:

[(1, 20815552), (2, 10407776), (4, 5203888), (8, 2601944), (16, 1300972), (23, 905024), (32, 650486), (46, 452512), (64, 325243), (79, 263488), (92, 226256), (158, 131744), (179, 116288), (184, 113128), (316, 65872), (358, 58144), (368, 56564), (632, 32936), (716, 29072), (736, 28282), (1264, 16468), (1432, 14536), (1472, 14141), (1817, 11456), (2528, 8234), (2864, 7268), (3634, 5728), (4117, 5056)]