28405980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9283}}^1$

素因数の和:9315

約数の個数: 72

約数和(自身を含む): 91243152

約数和(自身を除く): 62837172

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, 9283, 18566, 27849, 37132, 46415, 55698, 83547, 92830, 111396, 139245, 157811, 167094, 185660, 278490, 315622, 334188, 417735, 473433, 556980, 631244, 789055, 835470, 946866, 1420299, 1578110, 1670940, 1893732, 2367165, 2840598, 3156220, 4734330, 5681196, 7101495, 9468660, 14202990, 28405980]

約数ペア:

[(1, 28405980), (2, 14202990), (3, 9468660), (4, 7101495), (5, 5681196), (6, 4734330), (9, 3156220), (10, 2840598), (12, 2367165), (15, 1893732), (17, 1670940), (18, 1578110), (20, 1420299), (30, 946866), (34, 835470), (36, 789055), (45, 631244), (51, 556980), (60, 473433), (68, 417735), (85, 334188), (90, 315622), (102, 278490), (153, 185660), (170, 167094), (180, 157811), (204, 139245), (255, 111396), (306, 92830), (340, 83547), (510, 55698), (612, 46415), (765, 37132), (1020, 27849), (1530, 18566), (3060, 9283)]