28438920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:615

約数の個数: 96

約数和(自身を含む): 93127320

約数和(自身を除く): 64688400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 197, 360, 394, 401, 591, 788, 802, 985, 1182, 1203, 1576, 1604, 1773, 1970, 2005, 2364, 2406, 2955, 3208, 3546, 3609, 3940, 4010, 4728, 4812, 5910, 6015, 7092, 7218, 7880, 8020, 8865, 9624, 11820, 12030, 14184, 14436, 16040, 17730, 18045, 23640, 24060, 28872, 35460, 36090, 48120, 70920, 72180, 78997, 144360, 157994, 236991, 315988, 394985, 473982, 631976, 710973, 789970, 947964, 1184955, 1421946, 1579940, 1895928, 2369910, 2843892, 3159880, 3554865, 4739820, 5687784, 7109730, 9479640, 14219460, 28438920]

約数ペア:

[(1, 28438920), (2, 14219460), (3, 9479640), (4, 7109730), (5, 5687784), (6, 4739820), (8, 3554865), (9, 3159880), (10, 2843892), (12, 2369910), (15, 1895928), (18, 1579940), (20, 1421946), (24, 1184955), (30, 947964), (36, 789970), (40, 710973), (45, 631976), (60, 473982), (72, 394985), (90, 315988), (120, 236991), (180, 157994), (197, 144360), (360, 78997), (394, 72180), (401, 70920), (591, 48120), (788, 36090), (802, 35460), (985, 28872), (1182, 24060), (1203, 23640), (1576, 18045), (1604, 17730), (1773, 16040), (1970, 14436), (2005, 14184), (2364, 12030), (2406, 11820), (2955, 9624), (3208, 8865), (3546, 8020), (3609, 7880), (3940, 7218), (4010, 7092), (4728, 6015), (4812, 5910)]