25160680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 60575040

約数和(自身を除く): 35414360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 163, 170, 227, 326, 340, 454, 652, 680, 815, 908, 1135, 1304, 1630, 1816, 2270, 2771, 3260, 3859, 4540, 5542, 6520, 7718, 9080, 11084, 13855, 15436, 19295, 22168, 27710, 30872, 37001, 38590, 55420, 74002, 77180, 110840, 148004, 154360, 185005, 296008, 370010, 629017, 740020, 1258034, 1480040, 2516068, 3145085, 5032136, 6290170, 12580340, 25160680]

約数ペア:

[(1, 25160680), (2, 12580340), (4, 6290170), (5, 5032136), (8, 3145085), (10, 2516068), (17, 1480040), (20, 1258034), (34, 740020), (40, 629017), (68, 370010), (85, 296008), (136, 185005), (163, 154360), (170, 148004), (227, 110840), (326, 77180), (340, 74002), (454, 55420), (652, 38590), (680, 37001), (815, 30872), (908, 27710), (1135, 22168), (1304, 19295), (1630, 15436), (1816, 13855), (2270, 11084), (2771, 9080), (3260, 7718), (3859, 6520), (4540, 5542)]