20123176815

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{78577}}^1$

素因数の和:78869

約数の個数: 64

約数和(自身を含む): 41036574720

約数和(自身を除く): 20913397905

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 271, 315, 813, 945, 1355, 1897, 2439, 4065, 5691, 7317, 9485, 12195, 17073, 28455, 36585, 51219, 78577, 85365, 235731, 256095, 392885, 550039, 707193, 1178655, 1650117, 2121579, 2750195, 3535965, 4950351, 8250585, 10607895, 14851053, 21294367, 24751755, 63883101, 74255265, 106471835, 149060569, 191649303, 319415505, 447181707, 574947909, 745302845, 958246515, 1341545121, 2235908535, 2874739545, 4024635363, 6707725605, 20123176815]

約数ペア:

[(1, 20123176815), (3, 6707725605), (5, 4024635363), (7, 2874739545), (9, 2235908535), (15, 1341545121), (21, 958246515), (27, 745302845), (35, 574947909), (45, 447181707), (63, 319415505), (105, 191649303), (135, 149060569), (189, 106471835), (271, 74255265), (315, 63883101), (813, 24751755), (945, 21294367), (1355, 14851053), (1897, 10607895), (2439, 8250585), (4065, 4950351), (5691, 3535965), (7317, 2750195), (9485, 2121579), (12195, 1650117), (17073, 1178655), (28455, 707193), (36585, 550039), (51219, 392885), (78577, 256095), (85365, 235731)]