213325520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{691}}^1$

素因数の和:948

約数の個数: 80

約数和(自身を含む): 528234048

約数和(自身を除く): 314908528

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 227, 272, 340, 454, 680, 691, 908, 1135, 1360, 1382, 1816, 2270, 2764, 3455, 3632, 3859, 4540, 5528, 6910, 7718, 9080, 11056, 11747, 13820, 15436, 18160, 19295, 23494, 27640, 30872, 38590, 46988, 55280, 58735, 61744, 77180, 93976, 117470, 154360, 156857, 187952, 234940, 308720, 313714, 469880, 627428, 784285, 939760, 1254856, 1568570, 2509712, 2666569, 3137140, 5333138, 6274280, 10666276, 12548560, 13332845, 21332552, 26665690, 42665104, 53331380, 106662760, 213325520]

約数ペア:

[(1, 213325520), (2, 106662760), (4, 53331380), (5, 42665104), (8, 26665690), (10, 21332552), (16, 13332845), (17, 12548560), (20, 10666276), (34, 6274280), (40, 5333138), (68, 3137140), (80, 2666569), (85, 2509712), (136, 1568570), (170, 1254856), (227, 939760), (272, 784285), (340, 627428), (454, 469880), (680, 313714), (691, 308720), (908, 234940), (1135, 187952), (1360, 156857), (1382, 154360), (1816, 117470), (2270, 93976), (2764, 77180), (3455, 61744), (3632, 58735), (3859, 55280), (4540, 46988), (5528, 38590), (6910, 30872), (7718, 27640), (9080, 23494), (11056, 19295), (11747, 18160), (13820, 15436)]