28888740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8447}}^1$

素因数の和:8481

約数の個数: 72

約数和(自身を含む): 92252160

約数和(自身を除く): 63363420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8447, 16894, 25341, 33788, 42235, 50682, 76023, 84470, 101364, 126705, 152046, 160493, 168940, 253410, 304092, 320986, 380115, 481479, 506820, 641972, 760230, 802465, 962958, 1444437, 1520460, 1604930, 1925916, 2407395, 2888874, 3209860, 4814790, 5777748, 7222185, 9629580, 14444370, 28888740]

約数ペア:

[(1, 28888740), (2, 14444370), (3, 9629580), (4, 7222185), (5, 5777748), (6, 4814790), (9, 3209860), (10, 2888874), (12, 2407395), (15, 1925916), (18, 1604930), (19, 1520460), (20, 1444437), (30, 962958), (36, 802465), (38, 760230), (45, 641972), (57, 506820), (60, 481479), (76, 380115), (90, 320986), (95, 304092), (114, 253410), (171, 168940), (180, 160493), (190, 152046), (228, 126705), (285, 101364), (342, 84470), (380, 76023), (570, 50682), (684, 42235), (855, 33788), (1140, 25341), (1710, 16894), (3420, 8447)]