328578640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1637}}^1$

素因数の和:1856

約数の個数: 80

約数和(自身を含む): 827478288

約数和(自身を除く): 498899648

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 193, 208, 260, 386, 520, 772, 965, 1040, 1544, 1637, 1930, 2509, 3088, 3274, 3860, 5018, 6548, 7720, 8185, 10036, 12545, 13096, 15440, 16370, 20072, 21281, 25090, 26192, 32740, 40144, 42562, 50180, 65480, 85124, 100360, 106405, 130960, 170248, 200720, 212810, 315941, 340496, 425620, 631882, 851240, 1263764, 1579705, 1702480, 2527528, 3159410, 4107233, 5055056, 6318820, 8214466, 12637640, 16428932, 20536165, 25275280, 32857864, 41072330, 65715728, 82144660, 164289320, 328578640]

約数ペア:

[(1, 328578640), (2, 164289320), (4, 82144660), (5, 65715728), (8, 41072330), (10, 32857864), (13, 25275280), (16, 20536165), (20, 16428932), (26, 12637640), (40, 8214466), (52, 6318820), (65, 5055056), (80, 4107233), (104, 3159410), (130, 2527528), (193, 1702480), (208, 1579705), (260, 1263764), (386, 851240), (520, 631882), (772, 425620), (965, 340496), (1040, 315941), (1544, 212810), (1637, 200720), (1930, 170248), (2509, 130960), (3088, 106405), (3274, 100360), (3860, 85124), (5018, 65480), (6548, 50180), (7720, 42562), (8185, 40144), (10036, 32740), (12545, 26192), (13096, 25090), (15440, 21281), (16370, 20072)]