640789248

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{751}}^1$

素因数の和:882

約数の個数: 144

約数和(自身を含む): 1881395712

約数和(自身を除く): 1240606464

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 101, 128, 132, 176, 192, 202, 256, 264, 303, 352, 384, 404, 528, 606, 704, 751, 768, 808, 1056, 1111, 1212, 1408, 1502, 1616, 2112, 2222, 2253, 2424, 2816, 3004, 3232, 3333, 4224, 4444, 4506, 4848, 6008, 6464, 6666, 8261, 8448, 8888, 9012, 9696, 12016, 12928, 13332, 16522, 17776, 18024, 19392, 24032, 24783, 25856, 26664, 33044, 35552, 36048, 38784, 48064, 49566, 53328, 66088, 71104, 72096, 75851, 77568, 96128, 99132, 106656, 132176, 142208, 144192, 151702, 192256, 198264, 213312, 227553, 264352, 284416, 288384, 303404, 396528, 426624, 455106, 528704, 576768, 606808, 793056, 834361, 853248, 910212, 1057408, 1213616, 1586112, 1668722, 1820424, 2114816, 2427232, 2503083, 3172224, 3337444, 3640848, 4854464, 5006166, 6344448, 6674888, 7281696, 9708928, 10012332, 13349776, 14563392, 19417856, 20024664, 26699552, 29126784, 40049328, 53399104, 58253568, 80098656, 106798208, 160197312, 213596416, 320394624, 640789248]

約数ペア:

[(1, 640789248), (2, 320394624), (3, 213596416), (4, 160197312), (6, 106798208), (8, 80098656), (11, 58253568), (12, 53399104), (16, 40049328), (22, 29126784), (24, 26699552), (32, 20024664), (33, 19417856), (44, 14563392), (48, 13349776), (64, 10012332), (66, 9708928), (88, 7281696), (96, 6674888), (101, 6344448), (128, 5006166), (132, 4854464), (176, 3640848), (192, 3337444), (202, 3172224), (256, 2503083), (264, 2427232), (303, 2114816), (352, 1820424), (384, 1668722), (404, 1586112), (528, 1213616), (606, 1057408), (704, 910212), (751, 853248), (768, 834361), (808, 793056), (1056, 606808), (1111, 576768), (1212, 528704), (1408, 455106), (1502, 426624), (1616, 396528), (2112, 303404), (2222, 288384), (2253, 284416), (2424, 264352), (2816, 227553), (3004, 213312), (3232, 198264), (3333, 192256), (4224, 151702), (4444, 144192), (4506, 142208), (4848, 132176), (6008, 106656), (6464, 99132), (6666, 96128), (8261, 77568), (8448, 75851), (8888, 72096), (9012, 71104), (9696, 66088), (12016, 53328), (12928, 49566), (13332, 48064), (16522, 38784), (17776, 36048), (18024, 35552), (19392, 33044), (24032, 26664), (24783, 25856)]