20618368

素因数分解:

$2^7\times {\mathrm{79}}^1\times {\mathrm{2039}}^1$

素因数の和:2132

約数の個数: 32

約数和(自身を含む): 41616000

約数和(自身を除く): 20997632

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 316, 632, 1264, 2039, 2528, 4078, 5056, 8156, 10112, 16312, 32624, 65248, 130496, 161081, 260992, 322162, 644324, 1288648, 2577296, 5154592, 10309184, 20618368]

約数ペア:

[(1, 20618368), (2, 10309184), (4, 5154592), (8, 2577296), (16, 1288648), (32, 644324), (64, 322162), (79, 260992), (128, 161081), (158, 130496), (316, 65248), (632, 32624), (1264, 16312), (2039, 10112), (2528, 8156), (4078, 5056)]