81064480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{72379}}^1$

素因数の和:72401

約数の個数: 48

約数和(自身を含む): 218877120

約数和(自身を除く): 137812640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 72379, 144758, 289516, 361895, 506653, 579032, 723790, 1013306, 1158064, 1447580, 2026612, 2316128, 2533265, 2895160, 4053224, 5066530, 5790320, 8106448, 10133060, 11580640, 16212896, 20266120, 40532240, 81064480]

約数ペア:

[(1, 81064480), (2, 40532240), (4, 20266120), (5, 16212896), (7, 11580640), (8, 10133060), (10, 8106448), (14, 5790320), (16, 5066530), (20, 4053224), (28, 2895160), (32, 2533265), (35, 2316128), (40, 2026612), (56, 1447580), (70, 1158064), (80, 1013306), (112, 723790), (140, 579032), (160, 506653), (224, 361895), (280, 289516), (560, 144758), (1120, 72379)]