257576452

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 553582400

約数和(自身を除く): 296005948

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 139, 229, 238, 278, 289, 458, 476, 556, 578, 916, 973, 1156, 1603, 1946, 2023, 2363, 3206, 3892, 3893, 4046, 4726, 6412, 7786, 8092, 9452, 15572, 16541, 27251, 31831, 33082, 40171, 54502, 63662, 66164, 66181, 80342, 109004, 127324, 132362, 160684, 222817, 264724, 281197, 445634, 463267, 541127, 562394, 891268, 926534, 1082254, 1124788, 1853068, 2164508, 3787889, 7575778, 9199159, 15151556, 18398318, 36796636, 64394113, 128788226, 257576452]

約数ペア:

[(1, 257576452), (2, 128788226), (4, 64394113), (7, 36796636), (14, 18398318), (17, 15151556), (28, 9199159), (34, 7575778), (68, 3787889), (119, 2164508), (139, 1853068), (229, 1124788), (238, 1082254), (278, 926534), (289, 891268), (458, 562394), (476, 541127), (556, 463267), (578, 445634), (916, 281197), (973, 264724), (1156, 222817), (1603, 160684), (1946, 132362), (2023, 127324), (2363, 109004), (3206, 80342), (3892, 66181), (3893, 66164), (4046, 63662), (4726, 54502), (6412, 40171), (7786, 33082), (8092, 31831), (9452, 27251), (15572, 16541)]