263171480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 702777600

約数和(自身を除く): 439606120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 139, 143, 220, 260, 278, 286, 331, 440, 520, 556, 572, 662, 695, 715, 1112, 1144, 1324, 1390, 1430, 1529, 1655, 1807, 2648, 2780, 2860, 3058, 3310, 3614, 3641, 4303, 5560, 5720, 6116, 6620, 7228, 7282, 7645, 8606, 9035, 12232, 13240, 14456, 14564, 15290, 17212, 18070, 18205, 19877, 21515, 29128, 30580, 34424, 36140, 36410, 39754, 43030, 46009, 47333, 61160, 72280, 72820, 79508, 86060, 92018, 94666, 99385, 145640, 159016, 172120, 184036, 189332, 198770, 230045, 236665, 368072, 378664, 397540, 460090, 473330, 506099, 598117, 795080, 920180, 946660, 1012198, 1196234, 1840360, 1893320, 2024396, 2392468, 2530495, 2990585, 4048792, 4784936, 5060990, 5981170, 6579287, 10121980, 11962340, 13158574, 20243960, 23924680, 26317148, 32896435, 52634296, 65792870, 131585740, 263171480]

約数ペア:

[(1, 263171480), (2, 131585740), (4, 65792870), (5, 52634296), (8, 32896435), (10, 26317148), (11, 23924680), (13, 20243960), (20, 13158574), (22, 11962340), (26, 10121980), (40, 6579287), (44, 5981170), (52, 5060990), (55, 4784936), (65, 4048792), (88, 2990585), (104, 2530495), (110, 2392468), (130, 2024396), (139, 1893320), (143, 1840360), (220, 1196234), (260, 1012198), (278, 946660), (286, 920180), (331, 795080), (440, 598117), (520, 506099), (556, 473330), (572, 460090), (662, 397540), (695, 378664), (715, 368072), (1112, 236665), (1144, 230045), (1324, 198770), (1390, 189332), (1430, 184036), (1529, 172120), (1655, 159016), (1807, 145640), (2648, 99385), (2780, 94666), (2860, 92018), (3058, 86060), (3310, 79508), (3614, 72820), (3641, 72280), (4303, 61160), (5560, 47333), (5720, 46009), (6116, 43030), (6620, 39754), (7228, 36410), (7282, 36140), (7645, 34424), (8606, 30580), (9035, 29128), (12232, 21515), (13240, 19877), (14456, 18205), (14564, 18070), (15290, 17212)]