408889780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1171}}^1$

素因数の和:1289

約数の個数: 96

約数和(自身を含む): 992355840

約数和(自身を除く): 583466060

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 79, 85, 130, 158, 170, 221, 260, 316, 340, 395, 442, 790, 884, 1027, 1105, 1171, 1343, 1580, 2054, 2210, 2342, 2686, 4108, 4420, 4684, 5135, 5372, 5855, 6715, 10270, 11710, 13430, 15223, 17459, 19907, 20540, 23420, 26860, 30446, 34918, 39814, 60892, 69836, 76115, 79628, 87295, 92509, 99535, 152230, 174590, 185018, 199070, 258791, 304460, 349180, 370036, 398140, 462545, 517582, 925090, 1035164, 1202617, 1293955, 1572653, 1850180, 2405234, 2587910, 3145306, 4810468, 5175820, 6013085, 6290612, 7863265, 12026170, 15726530, 20444489, 24052340, 31453060, 40888978, 81777956, 102222445, 204444890, 408889780]

約数ペア:

[(1, 408889780), (2, 204444890), (4, 102222445), (5, 81777956), (10, 40888978), (13, 31453060), (17, 24052340), (20, 20444489), (26, 15726530), (34, 12026170), (52, 7863265), (65, 6290612), (68, 6013085), (79, 5175820), (85, 4810468), (130, 3145306), (158, 2587910), (170, 2405234), (221, 1850180), (260, 1572653), (316, 1293955), (340, 1202617), (395, 1035164), (442, 925090), (790, 517582), (884, 462545), (1027, 398140), (1105, 370036), (1171, 349180), (1343, 304460), (1580, 258791), (2054, 199070), (2210, 185018), (2342, 174590), (2686, 152230), (4108, 99535), (4420, 92509), (4684, 87295), (5135, 79628), (5372, 76115), (5855, 69836), (6715, 60892), (10270, 39814), (11710, 34918), (13430, 30446), (15223, 26860), (17459, 23420), (19907, 20540)]