28140385

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2689}}^1$

素因数の和:2737

約数の個数: 32

約数和(自身を含む): 43384320

約数和(自身を除く): 15243935

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 2093, 2689, 10465, 13445, 18823, 34957, 61847, 94115, 174785, 244699, 309235, 432929, 804011, 1223495, 2164645, 4020055, 5628077, 28140385]

約数ペア:

[(1, 28140385), (5, 5628077), (7, 4020055), (13, 2164645), (23, 1223495), (35, 804011), (65, 432929), (91, 309235), (115, 244699), (161, 174785), (299, 94115), (455, 61847), (805, 34957), (1495, 18823), (2093, 13445), (2689, 10465)]