28051020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 91990080

約数和(自身を除く): 63939060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 89, 90, 102, 103, 153, 170, 178, 180, 204, 206, 255, 267, 306, 309, 340, 356, 412, 445, 510, 515, 534, 612, 618, 765, 801, 890, 927, 1020, 1030, 1068, 1236, 1335, 1513, 1530, 1545, 1602, 1751, 1780, 1854, 2060, 2670, 3026, 3060, 3090, 3204, 3502, 3708, 4005, 4539, 4635, 5253, 5340, 6052, 6180, 7004, 7565, 8010, 8755, 9078, 9167, 9270, 10506, 13617, 15130, 15759, 16020, 17510, 18156, 18334, 18540, 21012, 22695, 26265, 27234, 27501, 30260, 31518, 35020, 36668, 45390, 45835, 52530, 54468, 55002, 63036, 68085, 78795, 82503, 90780, 91670, 105060, 110004, 136170, 137505, 155839, 157590, 165006, 183340, 272340, 275010, 311678, 315180, 330012, 412515, 467517, 550020, 623356, 779195, 825030, 935034, 1402551, 1558390, 1650060, 1870068, 2337585, 2805102, 3116780, 4675170, 5610204, 7012755, 9350340, 14025510, 28051020]

約数ペア:

[(1, 28051020), (2, 14025510), (3, 9350340), (4, 7012755), (5, 5610204), (6, 4675170), (9, 3116780), (10, 2805102), (12, 2337585), (15, 1870068), (17, 1650060), (18, 1558390), (20, 1402551), (30, 935034), (34, 825030), (36, 779195), (45, 623356), (51, 550020), (60, 467517), (68, 412515), (85, 330012), (89, 315180), (90, 311678), (102, 275010), (103, 272340), (153, 183340), (170, 165006), (178, 157590), (180, 155839), (204, 137505), (206, 136170), (255, 110004), (267, 105060), (306, 91670), (309, 90780), (340, 82503), (356, 78795), (412, 68085), (445, 63036), (510, 55002), (515, 54468), (534, 52530), (612, 45835), (618, 45390), (765, 36668), (801, 35020), (890, 31518), (927, 30260), (1020, 27501), (1030, 27234), (1068, 26265), (1236, 22695), (1335, 21012), (1513, 18540), (1530, 18334), (1545, 18156), (1602, 17510), (1751, 16020), (1780, 15759), (1854, 15130), (2060, 13617), (2670, 10506), (3026, 9270), (3060, 9167), (3090, 9078), (3204, 8755), (3502, 8010), (3708, 7565), (4005, 7004), (4539, 6180), (4635, 6052), (5253, 5340)]