20638080

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3583}}^1$

素因数の和:3608

約数の個数: 96

約数和(自身を含む): 71285760

約数和(自身を除く): 50647680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 3583, 5760, 7166, 10749, 14332, 17915, 21498, 28664, 32247, 35830, 42996, 53745, 57328, 64494, 71660, 85992, 107490, 114656, 128988, 143320, 161235, 171984, 214980, 229312, 257976, 286640, 322470, 343968, 429960, 458624, 515952, 573280, 644940, 687936, 859920, 1031904, 1146560, 1289880, 1375872, 1719840, 2063808, 2293120, 2579760, 3439680, 4127616, 5159520, 6879360, 10319040, 20638080]

約数ペア:

[(1, 20638080), (2, 10319040), (3, 6879360), (4, 5159520), (5, 4127616), (6, 3439680), (8, 2579760), (9, 2293120), (10, 2063808), (12, 1719840), (15, 1375872), (16, 1289880), (18, 1146560), (20, 1031904), (24, 859920), (30, 687936), (32, 644940), (36, 573280), (40, 515952), (45, 458624), (48, 429960), (60, 343968), (64, 322470), (72, 286640), (80, 257976), (90, 229312), (96, 214980), (120, 171984), (128, 161235), (144, 143320), (160, 128988), (180, 114656), (192, 107490), (240, 85992), (288, 71660), (320, 64494), (360, 57328), (384, 53745), (480, 42996), (576, 35830), (640, 32247), (720, 28664), (960, 21498), (1152, 17915), (1440, 14332), (1920, 10749), (2880, 7166), (3583, 5760)]