20267240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72383}}^1$

素因数の和:72401

約数の個数: 32

約数和(自身を含む): 52116480

約数和(自身を除く): 31849240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72383, 144766, 289532, 361915, 506681, 579064, 723830, 1013362, 1447660, 2026724, 2533405, 2895320, 4053448, 5066810, 10133620, 20267240]

約数ペア:

[(1, 20267240), (2, 10133620), (4, 5066810), (5, 4053448), (7, 2895320), (8, 2533405), (10, 2026724), (14, 1447660), (20, 1013362), (28, 723830), (35, 579064), (40, 506681), (56, 361915), (70, 289532), (140, 144766), (280, 72383)]