161725264

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^2$

素因数の和:320

約数の個数: 60

約数和(自身を含む): 343093120

約数和(自身を除く): 181367856

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 131, 152, 248, 262, 304, 496, 524, 589, 1048, 1178, 2096, 2356, 2489, 4061, 4712, 4978, 8122, 9424, 9956, 16244, 17161, 19912, 32488, 34322, 39824, 64976, 68644, 77159, 137288, 154318, 274576, 308636, 326059, 531991, 617272, 652118, 1063982, 1234544, 1304236, 2127964, 2608472, 4255928, 5216944, 8511856, 10107829, 20215658, 40431316, 80862632, 161725264]

約数ペア:

[(1, 161725264), (2, 80862632), (4, 40431316), (8, 20215658), (16, 10107829), (19, 8511856), (31, 5216944), (38, 4255928), (62, 2608472), (76, 2127964), (124, 1304236), (131, 1234544), (152, 1063982), (248, 652118), (262, 617272), (304, 531991), (496, 326059), (524, 308636), (589, 274576), (1048, 154318), (1178, 137288), (2096, 77159), (2356, 68644), (2489, 64976), (4061, 39824), (4712, 34322), (4978, 32488), (8122, 19912), (9424, 17161), (9956, 16244)]