478777780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:533

約数の個数: 96

約数和(自身を含む): 1122651936

約数和(自身を除く): 643874156

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 157, 185, 260, 314, 317, 370, 481, 628, 634, 740, 785, 962, 1268, 1570, 1585, 1924, 2041, 2405, 3140, 3170, 4082, 4121, 4810, 5809, 6340, 8164, 8242, 9620, 10205, 11618, 11729, 16484, 20410, 20605, 23236, 23458, 29045, 40820, 41210, 46916, 49769, 58090, 58645, 75517, 82420, 99538, 116180, 117290, 151034, 152477, 199076, 234580, 248845, 302068, 304954, 377585, 497690, 609908, 646997, 755170, 762385, 995380, 1293994, 1510340, 1524770, 1841453, 2587988, 3049540, 3234985, 3682906, 6469970, 7365812, 9207265, 12939940, 18414530, 23938889, 36829060, 47877778, 95755556, 119694445, 239388890, 478777780]

約数ペア:

[(1, 478777780), (2, 239388890), (4, 119694445), (5, 95755556), (10, 47877778), (13, 36829060), (20, 23938889), (26, 18414530), (37, 12939940), (52, 9207265), (65, 7365812), (74, 6469970), (130, 3682906), (148, 3234985), (157, 3049540), (185, 2587988), (260, 1841453), (314, 1524770), (317, 1510340), (370, 1293994), (481, 995380), (628, 762385), (634, 755170), (740, 646997), (785, 609908), (962, 497690), (1268, 377585), (1570, 304954), (1585, 302068), (1924, 248845), (2041, 234580), (2405, 199076), (3140, 152477), (3170, 151034), (4082, 117290), (4121, 116180), (4810, 99538), (5809, 82420), (6340, 75517), (8164, 58645), (8242, 58090), (9620, 49769), (10205, 46916), (11618, 41210), (11729, 40820), (16484, 29045), (20410, 23458), (20605, 23236)]