328541440

素因数分解:

$2^8\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1151}}^1$

素因数の和:1395

約数の個数: 72

約数和(自身を含む): 791175168

約数和(自身を除く): 462633728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 223, 256, 320, 446, 640, 892, 1115, 1151, 1280, 1784, 2230, 2302, 3568, 4460, 4604, 5755, 7136, 8920, 9208, 11510, 14272, 17840, 18416, 23020, 28544, 35680, 36832, 46040, 57088, 71360, 73664, 92080, 142720, 147328, 184160, 256673, 285440, 294656, 368320, 513346, 736640, 1026692, 1283365, 1473280, 2053384, 2566730, 4106768, 5133460, 8213536, 10266920, 16427072, 20533840, 32854144, 41067680, 65708288, 82135360, 164270720, 328541440]

約数ペア:

[(1, 328541440), (2, 164270720), (4, 82135360), (5, 65708288), (8, 41067680), (10, 32854144), (16, 20533840), (20, 16427072), (32, 10266920), (40, 8213536), (64, 5133460), (80, 4106768), (128, 2566730), (160, 2053384), (223, 1473280), (256, 1283365), (320, 1026692), (446, 736640), (640, 513346), (892, 368320), (1115, 294656), (1151, 285440), (1280, 256673), (1784, 184160), (2230, 147328), (2302, 142720), (3568, 92080), (4460, 73664), (4604, 71360), (5755, 57088), (7136, 46040), (8920, 36832), (9208, 35680), (11510, 28544), (14272, 23020), (17840, 18416)]