28811970

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 85536000

約数和(自身を除く): 56724030

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 89, 90, 99, 109, 110, 135, 165, 178, 198, 218, 267, 270, 297, 327, 330, 445, 495, 534, 545, 594, 654, 801, 890, 979, 981, 990, 1090, 1199, 1335, 1485, 1602, 1635, 1958, 1962, 2398, 2403, 2670, 2937, 2943, 2970, 3270, 3597, 4005, 4806, 4895, 4905, 5874, 5886, 5995, 7194, 8010, 8811, 9701, 9790, 9810, 10791, 11990, 12015, 14685, 14715, 17622, 17985, 19402, 21582, 24030, 26433, 29103, 29370, 29430, 32373, 35970, 44055, 48505, 52866, 53955, 58206, 64746, 87309, 88110, 97010, 106711, 107910, 132165, 145515, 161865, 174618, 213422, 261927, 264330, 291030, 320133, 323730, 436545, 523854, 533555, 640266, 873090, 960399, 1067110, 1309635, 1600665, 1920798, 2619270, 2881197, 3201330, 4801995, 5762394, 9603990, 14405985, 28811970]

約数ペア:

[(1, 28811970), (2, 14405985), (3, 9603990), (5, 5762394), (6, 4801995), (9, 3201330), (10, 2881197), (11, 2619270), (15, 1920798), (18, 1600665), (22, 1309635), (27, 1067110), (30, 960399), (33, 873090), (45, 640266), (54, 533555), (55, 523854), (66, 436545), (89, 323730), (90, 320133), (99, 291030), (109, 264330), (110, 261927), (135, 213422), (165, 174618), (178, 161865), (198, 145515), (218, 132165), (267, 107910), (270, 106711), (297, 97010), (327, 88110), (330, 87309), (445, 64746), (495, 58206), (534, 53955), (545, 52866), (594, 48505), (654, 44055), (801, 35970), (890, 32373), (979, 29430), (981, 29370), (990, 29103), (1090, 26433), (1199, 24030), (1335, 21582), (1485, 19402), (1602, 17985), (1635, 17622), (1958, 14715), (1962, 14685), (2398, 12015), (2403, 11990), (2670, 10791), (2937, 9810), (2943, 9790), (2970, 9701), (3270, 8811), (3597, 8010), (4005, 7194), (4806, 5995), (4895, 5886), (4905, 5874)]