7426640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:256

約数の個数: 80

約数和(自身を含む): 19196688

約数和(自身を除く): 11770048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 193, 208, 260, 296, 370, 386, 481, 520, 592, 740, 772, 962, 965, 1040, 1480, 1544, 1924, 1930, 2405, 2509, 2960, 3088, 3848, 3860, 4810, 5018, 7141, 7696, 7720, 9620, 10036, 12545, 14282, 15440, 19240, 20072, 25090, 28564, 35705, 38480, 40144, 50180, 57128, 71410, 92833, 100360, 114256, 142820, 185666, 200720, 285640, 371332, 464165, 571280, 742664, 928330, 1485328, 1856660, 3713320, 7426640]

約数ペア:

[(1, 7426640), (2, 3713320), (4, 1856660), (5, 1485328), (8, 928330), (10, 742664), (13, 571280), (16, 464165), (20, 371332), (26, 285640), (37, 200720), (40, 185666), (52, 142820), (65, 114256), (74, 100360), (80, 92833), (104, 71410), (130, 57128), (148, 50180), (185, 40144), (193, 38480), (208, 35705), (260, 28564), (296, 25090), (370, 20072), (386, 19240), (481, 15440), (520, 14282), (592, 12545), (740, 10036), (772, 9620), (962, 7720), (965, 7696), (1040, 7141), (1480, 5018), (1544, 4810), (1924, 3860), (1930, 3848), (2405, 3088), (2509, 2960)]