1721748780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{562663}}^1$

素因数の和:562695

約数の個数: 72

約数和(自身を含む): 5529861792

約数和(自身を除く): 3808113012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 562663, 1125326, 1687989, 2250652, 2813315, 3375978, 5063967, 5626630, 6751956, 8439945, 9565271, 10127934, 11253260, 16879890, 19130542, 20255868, 25319835, 28695813, 33759780, 38261084, 47826355, 50639670, 57391626, 86087439, 95652710, 101279340, 114783252, 143479065, 172174878, 191305420, 286958130, 344349756, 430437195, 573916260, 860874390, 1721748780]

約数ペア:

[(1, 1721748780), (2, 860874390), (3, 573916260), (4, 430437195), (5, 344349756), (6, 286958130), (9, 191305420), (10, 172174878), (12, 143479065), (15, 114783252), (17, 101279340), (18, 95652710), (20, 86087439), (30, 57391626), (34, 50639670), (36, 47826355), (45, 38261084), (51, 33759780), (60, 28695813), (68, 25319835), (85, 20255868), (90, 19130542), (102, 16879890), (153, 11253260), (170, 10127934), (180, 9565271), (204, 8439945), (255, 6751956), (306, 5626630), (340, 5063967), (510, 3375978), (612, 2813315), (765, 2250652), (1020, 1687989), (1530, 1125326), (3060, 562663)]