278830864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 608961024

約数和(自身を除く): 330130160

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 83, 104, 124, 166, 208, 248, 332, 403, 496, 521, 664, 806, 1042, 1079, 1328, 1612, 2084, 2158, 2573, 3224, 4168, 4316, 5146, 6448, 6773, 8336, 8632, 10292, 13546, 16151, 17264, 20584, 27092, 32302, 33449, 41168, 43243, 54184, 64604, 66898, 86486, 108368, 129208, 133796, 172972, 209963, 258416, 267592, 345944, 419926, 535184, 562159, 691888, 839852, 1124318, 1340533, 1679704, 2248636, 2681066, 3359408, 4497272, 5362132, 8994544, 10724264, 17426929, 21448528, 34853858, 69707716, 139415432, 278830864]

約数ペア:

[(1, 278830864), (2, 139415432), (4, 69707716), (8, 34853858), (13, 21448528), (16, 17426929), (26, 10724264), (31, 8994544), (52, 5362132), (62, 4497272), (83, 3359408), (104, 2681066), (124, 2248636), (166, 1679704), (208, 1340533), (248, 1124318), (332, 839852), (403, 691888), (496, 562159), (521, 535184), (664, 419926), (806, 345944), (1042, 267592), (1079, 258416), (1328, 209963), (1612, 172972), (2084, 133796), (2158, 129208), (2573, 108368), (3224, 86486), (4168, 66898), (4316, 64604), (5146, 54184), (6448, 43243), (6773, 41168), (8336, 33449), (8632, 32302), (10292, 27092), (13546, 20584), (16151, 17264)]