921440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 2349648

約数和(自身を除く): 1428208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 443, 520, 886, 1040, 1772, 2080, 2215, 3544, 4430, 5759, 7088, 8860, 11518, 14176, 17720, 23036, 28795, 35440, 46072, 57590, 70880, 92144, 115180, 184288, 230360, 460720, 921440]

約数ペア:

[(1, 921440), (2, 460720), (4, 230360), (5, 184288), (8, 115180), (10, 92144), (13, 70880), (16, 57590), (20, 46072), (26, 35440), (32, 28795), (40, 23036), (52, 17720), (65, 14176), (80, 11518), (104, 8860), (130, 7088), (160, 5759), (208, 4430), (260, 3544), (416, 2215), (443, 2080), (520, 1772), (886, 1040)]