20627040

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{877}}^1$

素因数の和:909

約数の個数: 144

約数和(自身を含む): 75669552

約数和(自身を除く): 55042512

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 877, 980, 1120, 1176, 1470, 1568, 1680, 1754, 1960, 2352, 2631, 2940, 3360, 3508, 3920, 4385, 4704, 5262, 5880, 6139, 7016, 7840, 8770, 10524, 11760, 12278, 13155, 14032, 17540, 18417, 21048, 23520, 24556, 26310, 28064, 30695, 35080, 36834, 42096, 42973, 49112, 52620, 61390, 70160, 73668, 84192, 85946, 92085, 98224, 105240, 122780, 128919, 140320, 147336, 171892, 184170, 196448, 210480, 214865, 245560, 257838, 294672, 343784, 368340, 420960, 429730, 491120, 515676, 589344, 644595, 687568, 736680, 859460, 982240, 1031352, 1289190, 1375136, 1473360, 1718920, 2062704, 2578380, 2946720, 3437840, 4125408, 5156760, 6875680, 10313520, 20627040]

約数ペア:

[(1, 20627040), (2, 10313520), (3, 6875680), (4, 5156760), (5, 4125408), (6, 3437840), (7, 2946720), (8, 2578380), (10, 2062704), (12, 1718920), (14, 1473360), (15, 1375136), (16, 1289190), (20, 1031352), (21, 982240), (24, 859460), (28, 736680), (30, 687568), (32, 644595), (35, 589344), (40, 515676), (42, 491120), (48, 429730), (49, 420960), (56, 368340), (60, 343784), (70, 294672), (80, 257838), (84, 245560), (96, 214865), (98, 210480), (105, 196448), (112, 184170), (120, 171892), (140, 147336), (147, 140320), (160, 128919), (168, 122780), (196, 105240), (210, 98224), (224, 92085), (240, 85946), (245, 84192), (280, 73668), (294, 70160), (336, 61390), (392, 52620), (420, 49112), (480, 42973), (490, 42096), (560, 36834), (588, 35080), (672, 30695), (735, 28064), (784, 26310), (840, 24556), (877, 23520), (980, 21048), (1120, 18417), (1176, 17540), (1470, 14032), (1568, 13155), (1680, 12278), (1754, 11760), (1960, 10524), (2352, 8770), (2631, 7840), (2940, 7016), (3360, 6139), (3508, 5880), (3920, 5262), (4385, 4704)]