72921280

素因数分解:

$2^6\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1259}}^1$

素因数の和:1457

約数の個数: 56

約数和(自身を含む): 174741840

約数和(自身を除く): 101820560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 181, 320, 362, 724, 905, 1259, 1448, 1810, 2518, 2896, 3620, 5036, 5792, 6295, 7240, 10072, 11584, 12590, 14480, 20144, 25180, 28960, 40288, 50360, 57920, 80576, 100720, 201440, 227879, 402880, 455758, 911516, 1139395, 1823032, 2278790, 3646064, 4557580, 7292128, 9115160, 14584256, 18230320, 36460640, 72921280]

約数ペア:

[(1, 72921280), (2, 36460640), (4, 18230320), (5, 14584256), (8, 9115160), (10, 7292128), (16, 4557580), (20, 3646064), (32, 2278790), (40, 1823032), (64, 1139395), (80, 911516), (160, 455758), (181, 402880), (320, 227879), (362, 201440), (724, 100720), (905, 80576), (1259, 57920), (1448, 50360), (1810, 40288), (2518, 28960), (2896, 25180), (3620, 20144), (5036, 14480), (5792, 12590), (6295, 11584), (7240, 10072)]