72090920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2777}}^1$

素因数の和:2858

約数の個数: 64

約数和(自身を含む): 180014400

約数和(自身を除く): 107923480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 1180, 1298, 2360, 2596, 2777, 3245, 5192, 5554, 6490, 11108, 12980, 13885, 22216, 25960, 27770, 30547, 55540, 61094, 111080, 122188, 152735, 163843, 244376, 305470, 327686, 610940, 655372, 819215, 1221880, 1310744, 1638430, 1802273, 3276860, 3604546, 6553720, 7209092, 9011365, 14418184, 18022730, 36045460, 72090920]

約数ペア:

[(1, 72090920), (2, 36045460), (4, 18022730), (5, 14418184), (8, 9011365), (10, 7209092), (11, 6553720), (20, 3604546), (22, 3276860), (40, 1802273), (44, 1638430), (55, 1310744), (59, 1221880), (88, 819215), (110, 655372), (118, 610940), (220, 327686), (236, 305470), (295, 244376), (440, 163843), (472, 152735), (590, 122188), (649, 111080), (1180, 61094), (1298, 55540), (2360, 30547), (2596, 27770), (2777, 25960), (3245, 22216), (5192, 13885), (5554, 12980), (6490, 11108)]