26704280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 64268640

約数和(自身を除く): 37564360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 173, 227, 340, 346, 454, 680, 692, 865, 908, 1135, 1384, 1730, 1816, 2270, 2941, 3460, 3859, 4540, 5882, 6920, 7718, 9080, 11764, 14705, 15436, 19295, 23528, 29410, 30872, 38590, 39271, 58820, 77180, 78542, 117640, 154360, 157084, 196355, 314168, 392710, 667607, 785420, 1335214, 1570840, 2670428, 3338035, 5340856, 6676070, 13352140, 26704280]

約数ペア:

[(1, 26704280), (2, 13352140), (4, 6676070), (5, 5340856), (8, 3338035), (10, 2670428), (17, 1570840), (20, 1335214), (34, 785420), (40, 667607), (68, 392710), (85, 314168), (136, 196355), (170, 157084), (173, 154360), (227, 117640), (340, 78542), (346, 77180), (454, 58820), (680, 39271), (692, 38590), (865, 30872), (908, 29410), (1135, 23528), (1384, 19295), (1730, 15436), (1816, 14705), (2270, 11764), (2941, 9080), (3460, 7718), (3859, 6920), (4540, 5882)]