81438448

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55933}}^1$

素因数の和:55961

約数の個数: 40

約数和(自身を含む): 194202848

約数和(自身を除く): 112764400

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 55933, 111866, 223732, 391531, 447464, 727129, 783062, 894928, 1454258, 1566124, 2908516, 3132248, 5089903, 5817032, 6264496, 10179806, 11634064, 20359612, 40719224, 81438448]

約数ペア:

[(1, 81438448), (2, 40719224), (4, 20359612), (7, 11634064), (8, 10179806), (13, 6264496), (14, 5817032), (16, 5089903), (26, 3132248), (28, 2908516), (52, 1566124), (56, 1454258), (91, 894928), (104, 783062), (112, 727129), (182, 447464), (208, 391531), (364, 223732), (728, 111866), (1456, 55933)]