13263460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{449}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 32054400

約数和(自身を除く): 18790940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 449, 844, 898, 1055, 1477, 1796, 2110, 2245, 2954, 3143, 4220, 4490, 5908, 6286, 7385, 8980, 12572, 14770, 15715, 29540, 31430, 62860, 94739, 189478, 378956, 473695, 663173, 947390, 1326346, 1894780, 2652692, 3315865, 6631730, 13263460]

約数ペア:

[(1, 13263460), (2, 6631730), (4, 3315865), (5, 2652692), (7, 1894780), (10, 1326346), (14, 947390), (20, 663173), (28, 473695), (35, 378956), (70, 189478), (140, 94739), (211, 62860), (422, 31430), (449, 29540), (844, 15715), (898, 14770), (1055, 12572), (1477, 8980), (1796, 7385), (2110, 6286), (2245, 5908), (2954, 4490), (3143, 4220)]