28820970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{743}}^1$

素因数の和:1187

約数の個数: 48

約数和(自身を含む): 75209472

約数和(自身を除く): 46388502

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 431, 743, 862, 1293, 1486, 2155, 2229, 2586, 3715, 3879, 4310, 4458, 6465, 6687, 7430, 7758, 11145, 12930, 13374, 19395, 22290, 33435, 38790, 66870, 320233, 640466, 960699, 1601165, 1921398, 2882097, 3202330, 4803495, 5764194, 9606990, 14410485, 28820970]

約数ペア:

[(1, 28820970), (2, 14410485), (3, 9606990), (5, 5764194), (6, 4803495), (9, 3202330), (10, 2882097), (15, 1921398), (18, 1601165), (30, 960699), (45, 640466), (90, 320233), (431, 66870), (743, 38790), (862, 33435), (1293, 22290), (1486, 19395), (2155, 13374), (2229, 12930), (2586, 11145), (3715, 7758), (3879, 7430), (4310, 6687), (4458, 6465)]