81400540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{24083}}^1$

素因数の和:24118

約数の個数: 36

約数和(自身を含む): 185109624

約数和(自身を除く): 103709084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 24083, 48166, 96332, 120415, 240830, 313079, 481660, 626158, 1252316, 1565395, 3130790, 4070027, 6261580, 8140054, 16280108, 20350135, 40700270, 81400540]

約数ペア:

[(1, 81400540), (2, 40700270), (4, 20350135), (5, 16280108), (10, 8140054), (13, 6261580), (20, 4070027), (26, 3130790), (52, 1565395), (65, 1252316), (130, 626158), (169, 481660), (260, 313079), (338, 240830), (676, 120415), (845, 96332), (1690, 48166), (3380, 24083)]