261874888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:506

約数の個数: 64

約数和(自身を含む): 548352000

約数和(自身を除く): 286477112

約数列:

[1, 2, 4, 8, 11, 22, 44, 79, 88, 139, 158, 271, 278, 316, 542, 556, 632, 869, 1084, 1112, 1529, 1738, 2168, 2981, 3058, 3476, 5962, 6116, 6952, 10981, 11924, 12232, 21409, 21962, 23848, 37669, 42818, 43924, 75338, 85636, 87848, 120791, 150676, 171272, 235499, 241582, 301352, 414359, 470998, 483164, 828718, 941996, 966328, 1657436, 1883992, 2975851, 3314872, 5951702, 11903404, 23806808, 32734361, 65468722, 130937444, 261874888]

約数ペア:

[(1, 261874888), (2, 130937444), (4, 65468722), (8, 32734361), (11, 23806808), (22, 11903404), (44, 5951702), (79, 3314872), (88, 2975851), (139, 1883992), (158, 1657436), (271, 966328), (278, 941996), (316, 828718), (542, 483164), (556, 470998), (632, 414359), (869, 301352), (1084, 241582), (1112, 235499), (1529, 171272), (1738, 150676), (2168, 120791), (2981, 87848), (3058, 85636), (3476, 75338), (5962, 43924), (6116, 42818), (6952, 37669), (10981, 23848), (11924, 21962), (12232, 21409)]