131280784

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4339}}^1$

素因数の和:4439

約数の個数: 40

約数和(自身を含む): 266927360

約数和(自身を除く): 135646576

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 3782, 4339, 7564, 8678, 15128, 17356, 30256, 34712, 69424, 134509, 264679, 269018, 529358, 538036, 1058716, 1076072, 2117432, 2152144, 4234864, 8205049, 16410098, 32820196, 65640392, 131280784]

約数ペア:

[(1, 131280784), (2, 65640392), (4, 32820196), (8, 16410098), (16, 8205049), (31, 4234864), (61, 2152144), (62, 2117432), (122, 1076072), (124, 1058716), (244, 538036), (248, 529358), (488, 269018), (496, 264679), (976, 134509), (1891, 69424), (3782, 34712), (4339, 30256), (7564, 17356), (8678, 15128)]