2001280

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:131

約数の個数: 64

約数和(自身を含む): 4957200

約数和(自身を除く): 2955920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 59, 64, 80, 106, 118, 128, 160, 212, 236, 265, 295, 320, 424, 472, 530, 590, 640, 848, 944, 1060, 1180, 1696, 1888, 2120, 2360, 3127, 3392, 3776, 4240, 4720, 6254, 6784, 7552, 8480, 9440, 12508, 15635, 16960, 18880, 25016, 31270, 33920, 37760, 50032, 62540, 100064, 125080, 200128, 250160, 400256, 500320, 1000640, 2001280]

約数ペア:

[(1, 2001280), (2, 1000640), (4, 500320), (5, 400256), (8, 250160), (10, 200128), (16, 125080), (20, 100064), (32, 62540), (40, 50032), (53, 37760), (59, 33920), (64, 31270), (80, 25016), (106, 18880), (118, 16960), (128, 15635), (160, 12508), (212, 9440), (236, 8480), (265, 7552), (295, 6784), (320, 6254), (424, 4720), (472, 4240), (530, 3776), (590, 3392), (640, 3127), (848, 2360), (944, 2120), (1060, 1888), (1180, 1696)]