21007680

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:376

約数の個数: 112

約数和(自身を含む): 67787520

約数和(自身を除く): 46779840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 158, 160, 192, 237, 240, 277, 316, 320, 395, 474, 480, 554, 632, 790, 831, 948, 960, 1108, 1185, 1264, 1385, 1580, 1662, 1896, 2216, 2370, 2528, 2770, 3160, 3324, 3792, 4155, 4432, 4740, 5056, 5540, 6320, 6648, 7584, 8310, 8864, 9480, 11080, 12640, 13296, 15168, 16620, 17728, 18960, 21883, 22160, 25280, 26592, 33240, 37920, 43766, 44320, 53184, 65649, 66480, 75840, 87532, 88640, 109415, 131298, 132960, 175064, 218830, 262596, 265920, 328245, 350128, 437660, 525192, 656490, 700256, 875320, 1050384, 1312980, 1400512, 1750640, 2100768, 2625960, 3501280, 4201536, 5251920, 7002560, 10503840, 21007680]

約数ペア:

[(1, 21007680), (2, 10503840), (3, 7002560), (4, 5251920), (5, 4201536), (6, 3501280), (8, 2625960), (10, 2100768), (12, 1750640), (15, 1400512), (16, 1312980), (20, 1050384), (24, 875320), (30, 700256), (32, 656490), (40, 525192), (48, 437660), (60, 350128), (64, 328245), (79, 265920), (80, 262596), (96, 218830), (120, 175064), (158, 132960), (160, 131298), (192, 109415), (237, 88640), (240, 87532), (277, 75840), (316, 66480), (320, 65649), (395, 53184), (474, 44320), (480, 43766), (554, 37920), (632, 33240), (790, 26592), (831, 25280), (948, 22160), (960, 21883), (1108, 18960), (1185, 17728), (1264, 16620), (1385, 15168), (1580, 13296), (1662, 12640), (1896, 11080), (2216, 9480), (2370, 8864), (2528, 8310), (2770, 7584), (3160, 6648), (3324, 6320), (3792, 5540), (4155, 5056), (4432, 4740)]