81068960

素因数分解:

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

素因数の和:72405

約数の個数: 48

約数和(自身を含む): 218889216

約数和(自身を除く): 137820256

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, 72383, 144766, 289532, 361915, 506681, 579064, 723830, 1013362, 1158128, 1447660, 2026724, 2316256, 2533405, 2895320, 4053448, 5066810, 5790640, 8106896, 10133620, 11581280, 16213792, 20267240, 40534480, 81068960]

約数ペア:

[(1, 81068960), (2, 40534480), (4, 20267240), (5, 16213792), (7, 11581280), (8, 10133620), (10, 8106896), (14, 5790640), (16, 5066810), (20, 4053448), (28, 2895320), (32, 2533405), (35, 2316256), (40, 2026724), (56, 1447660), (70, 1158128), (80, 1013362), (112, 723830), (140, 579064), (160, 506681), (224, 361915), (280, 289532), (560, 144766), (1120, 72383)]