18230320

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1259}}^1$

素因数の和:1453

約数の個数: 40

約数和(自身を含む): 42653520

約数和(自身を除く): 24423200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1259, 1448, 1810, 2518, 2896, 3620, 5036, 6295, 7240, 10072, 12590, 14480, 20144, 25180, 50360, 100720, 227879, 455758, 911516, 1139395, 1823032, 2278790, 3646064, 4557580, 9115160, 18230320]

約数ペア:

[(1, 18230320), (2, 9115160), (4, 4557580), (5, 3646064), (8, 2278790), (10, 1823032), (16, 1139395), (20, 911516), (40, 455758), (80, 227879), (181, 100720), (362, 50360), (724, 25180), (905, 20144), (1259, 14480), (1448, 12590), (1810, 10072), (2518, 7240), (2896, 6295), (3620, 5036)]