1621760

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{181}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 4464096

約数和(自身を除く): 2842336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 181, 224, 256, 280, 320, 362, 448, 560, 640, 724, 896, 905, 1120, 1267, 1280, 1448, 1792, 1810, 2240, 2534, 2896, 3620, 4480, 5068, 5792, 6335, 7240, 8960, 10136, 11584, 12670, 14480, 20272, 23168, 25340, 28960, 40544, 46336, 50680, 57920, 81088, 101360, 115840, 162176, 202720, 231680, 324352, 405440, 810880, 1621760]

約数ペア:

[(1, 1621760), (2, 810880), (4, 405440), (5, 324352), (7, 231680), (8, 202720), (10, 162176), (14, 115840), (16, 101360), (20, 81088), (28, 57920), (32, 50680), (35, 46336), (40, 40544), (56, 28960), (64, 25340), (70, 23168), (80, 20272), (112, 14480), (128, 12670), (140, 11584), (160, 10136), (181, 8960), (224, 7240), (256, 6335), (280, 5792), (320, 5068), (362, 4480), (448, 3620), (560, 2896), (640, 2534), (724, 2240), (896, 1810), (905, 1792), (1120, 1448), (1267, 1280)]