19728512

素因数分解:

$2^7\times {\mathrm{79}}^1\times {\mathrm{1951}}^1$

素因数の和:2044

約数の個数: 32

約数和(自身を含む): 39820800

約数和(自身を除く): 20092288

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 316, 632, 1264, 1951, 2528, 3902, 5056, 7804, 10112, 15608, 31216, 62432, 124864, 154129, 249728, 308258, 616516, 1233032, 2466064, 4932128, 9864256, 19728512]

約数ペア:

[(1, 19728512), (2, 9864256), (4, 4932128), (8, 2466064), (16, 1233032), (32, 616516), (64, 308258), (79, 249728), (128, 154129), (158, 124864), (316, 62432), (632, 31216), (1264, 15608), (1951, 10112), (2528, 7804), (3902, 5056)]