20406720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{733}}^1$

素因数の和:782

約数の個数: 112

約数和(自身を含む): 67116960

約数和(自身を除く): 46710240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 32, 40, 48, 58, 60, 64, 80, 87, 96, 116, 120, 145, 160, 174, 192, 232, 240, 290, 320, 348, 435, 464, 480, 580, 696, 733, 870, 928, 960, 1160, 1392, 1466, 1740, 1856, 2199, 2320, 2784, 2932, 3480, 3665, 4398, 4640, 5568, 5864, 6960, 7330, 8796, 9280, 10995, 11728, 13920, 14660, 17592, 21257, 21990, 23456, 27840, 29320, 35184, 42514, 43980, 46912, 58640, 63771, 70368, 85028, 87960, 106285, 117280, 127542, 140736, 170056, 175920, 212570, 234560, 255084, 318855, 340112, 351840, 425140, 510168, 637710, 680224, 703680, 850280, 1020336, 1275420, 1360448, 1700560, 2040672, 2550840, 3401120, 4081344, 5101680, 6802240, 10203360, 20406720]

約数ペア:

[(1, 20406720), (2, 10203360), (3, 6802240), (4, 5101680), (5, 4081344), (6, 3401120), (8, 2550840), (10, 2040672), (12, 1700560), (15, 1360448), (16, 1275420), (20, 1020336), (24, 850280), (29, 703680), (30, 680224), (32, 637710), (40, 510168), (48, 425140), (58, 351840), (60, 340112), (64, 318855), (80, 255084), (87, 234560), (96, 212570), (116, 175920), (120, 170056), (145, 140736), (160, 127542), (174, 117280), (192, 106285), (232, 87960), (240, 85028), (290, 70368), (320, 63771), (348, 58640), (435, 46912), (464, 43980), (480, 42514), (580, 35184), (696, 29320), (733, 27840), (870, 23456), (928, 21990), (960, 21257), (1160, 17592), (1392, 14660), (1466, 13920), (1740, 11728), (1856, 10995), (2199, 9280), (2320, 8796), (2784, 7330), (2932, 6960), (3480, 5864), (3665, 5568), (4398, 4640)]