247691860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 587059200

約数和(自身を除く): 339367340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 79, 124, 130, 155, 158, 260, 310, 316, 389, 395, 403, 620, 778, 790, 806, 1027, 1556, 1580, 1612, 1945, 2015, 2054, 2449, 3890, 4030, 4108, 4898, 5057, 5135, 7780, 8060, 9796, 10114, 10270, 12059, 12245, 20228, 20540, 24118, 24490, 25285, 30731, 31837, 48236, 48980, 50570, 60295, 61462, 63674, 101140, 120590, 122924, 127348, 153655, 156767, 159185, 241180, 307310, 313534, 318370, 399503, 614620, 627068, 636740, 783835, 799006, 952661, 1567670, 1598012, 1905322, 1997515, 3135340, 3810644, 3995030, 4763305, 7990060, 9526610, 12384593, 19053220, 24769186, 49538372, 61922965, 123845930, 247691860]

約数ペア:

[(1, 247691860), (2, 123845930), (4, 61922965), (5, 49538372), (10, 24769186), (13, 19053220), (20, 12384593), (26, 9526610), (31, 7990060), (52, 4763305), (62, 3995030), (65, 3810644), (79, 3135340), (124, 1997515), (130, 1905322), (155, 1598012), (158, 1567670), (260, 952661), (310, 799006), (316, 783835), (389, 636740), (395, 627068), (403, 614620), (620, 399503), (778, 318370), (790, 313534), (806, 307310), (1027, 241180), (1556, 159185), (1580, 156767), (1612, 153655), (1945, 127348), (2015, 122924), (2054, 120590), (2449, 101140), (3890, 63674), (4030, 61462), (4108, 60295), (4898, 50570), (5057, 48980), (5135, 48236), (7780, 31837), (8060, 30731), (9796, 25285), (10114, 24490), (10270, 24118), (12059, 20540), (12245, 20228)]