51731190

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:395

約数の個数: 128

約数和(自身を含む): 159805440

約数和(自身を除く): 108074250

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 101, 105, 126, 135, 189, 202, 210, 270, 271, 303, 315, 378, 505, 542, 606, 630, 707, 813, 909, 945, 1010, 1355, 1414, 1515, 1626, 1818, 1890, 1897, 2121, 2439, 2710, 2727, 3030, 3535, 3794, 4065, 4242, 4545, 4878, 5454, 5691, 6363, 7070, 7317, 8130, 9090, 9485, 10605, 11382, 12195, 12726, 13635, 14634, 17073, 18970, 19089, 21210, 24390, 27270, 27371, 28455, 31815, 34146, 36585, 38178, 51219, 54742, 56910, 63630, 73170, 82113, 85365, 95445, 102438, 136855, 164226, 170730, 190890, 191597, 246339, 256095, 273710, 383194, 410565, 492678, 512190, 574791, 739017, 821130, 957985, 1149582, 1231695, 1478034, 1724373, 1915970, 2463390, 2873955, 3448746, 3695085, 5173119, 5747910, 7390170, 8621865, 10346238, 17243730, 25865595, 51731190]

約数ペア:

[(1, 51731190), (2, 25865595), (3, 17243730), (5, 10346238), (6, 8621865), (7, 7390170), (9, 5747910), (10, 5173119), (14, 3695085), (15, 3448746), (18, 2873955), (21, 2463390), (27, 1915970), (30, 1724373), (35, 1478034), (42, 1231695), (45, 1149582), (54, 957985), (63, 821130), (70, 739017), (90, 574791), (101, 512190), (105, 492678), (126, 410565), (135, 383194), (189, 273710), (202, 256095), (210, 246339), (270, 191597), (271, 190890), (303, 170730), (315, 164226), (378, 136855), (505, 102438), (542, 95445), (606, 85365), (630, 82113), (707, 73170), (813, 63630), (909, 56910), (945, 54742), (1010, 51219), (1355, 38178), (1414, 36585), (1515, 34146), (1626, 31815), (1818, 28455), (1890, 27371), (1897, 27270), (2121, 24390), (2439, 21210), (2710, 19089), (2727, 18970), (3030, 17073), (3535, 14634), (3794, 13635), (4065, 12726), (4242, 12195), (4545, 11382), (4878, 10605), (5454, 9485), (5691, 9090), (6363, 8130), (7070, 7317)]