28157880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{509}}^1$

素因数の和:984

約数の個数: 64

約数和(自身を含む): 84823200

約数和(自身を除く): 56665320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 461, 509, 922, 1018, 1383, 1527, 1844, 2036, 2305, 2545, 2766, 3054, 3688, 4072, 4610, 5090, 5532, 6108, 6915, 7635, 9220, 10180, 11064, 12216, 13830, 15270, 18440, 20360, 27660, 30540, 55320, 61080, 234649, 469298, 703947, 938596, 1173245, 1407894, 1877192, 2346490, 2815788, 3519735, 4692980, 5631576, 7039470, 9385960, 14078940, 28157880]

約数ペア:

[(1, 28157880), (2, 14078940), (3, 9385960), (4, 7039470), (5, 5631576), (6, 4692980), (8, 3519735), (10, 2815788), (12, 2346490), (15, 1877192), (20, 1407894), (24, 1173245), (30, 938596), (40, 703947), (60, 469298), (120, 234649), (461, 61080), (509, 55320), (922, 30540), (1018, 27660), (1383, 20360), (1527, 18440), (1844, 15270), (2036, 13830), (2305, 12216), (2545, 11064), (2766, 10180), (3054, 9220), (3688, 7635), (4072, 6915), (4610, 6108), (5090, 5532)]