20742540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:192

約数の個数: 192

約数和(自身を含む): 74511360

約数和(自身を除く): 53768820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 29, 30, 35, 39, 42, 52, 58, 60, 65, 70, 78, 84, 87, 91, 105, 116, 130, 131, 140, 145, 156, 174, 182, 195, 203, 210, 260, 262, 273, 290, 348, 364, 377, 390, 393, 406, 420, 435, 455, 524, 546, 580, 609, 655, 754, 780, 786, 812, 870, 910, 917, 1015, 1092, 1131, 1218, 1310, 1365, 1508, 1572, 1703, 1740, 1820, 1834, 1885, 1965, 2030, 2262, 2436, 2620, 2639, 2730, 2751, 3045, 3406, 3668, 3770, 3799, 3930, 4060, 4524, 4585, 5109, 5278, 5460, 5502, 5655, 6090, 6812, 7540, 7598, 7860, 7917, 8515, 9170, 10218, 10556, 11004, 11310, 11397, 11921, 12180, 13195, 13755, 15196, 15834, 17030, 18340, 18995, 20436, 22620, 22794, 23842, 25545, 26390, 26593, 27510, 31668, 34060, 35763, 37990, 39585, 45588, 47684, 49387, 51090, 52780, 53186, 55020, 56985, 59605, 71526, 75980, 79170, 79779, 98774, 102180, 106372, 113970, 119210, 132965, 143052, 148161, 158340, 159558, 178815, 197548, 227940, 238420, 246935, 265930, 296322, 319116, 345709, 357630, 398895, 493870, 531860, 592644, 691418, 715260, 740805, 797790, 987740, 1037127, 1382836, 1481610, 1595580, 1728545, 2074254, 2963220, 3457090, 4148508, 5185635, 6914180, 10371270, 20742540]

約数ペア:

[(1, 20742540), (2, 10371270), (3, 6914180), (4, 5185635), (5, 4148508), (6, 3457090), (7, 2963220), (10, 2074254), (12, 1728545), (13, 1595580), (14, 1481610), (15, 1382836), (20, 1037127), (21, 987740), (26, 797790), (28, 740805), (29, 715260), (30, 691418), (35, 592644), (39, 531860), (42, 493870), (52, 398895), (58, 357630), (60, 345709), (65, 319116), (70, 296322), (78, 265930), (84, 246935), (87, 238420), (91, 227940), (105, 197548), (116, 178815), (130, 159558), (131, 158340), (140, 148161), (145, 143052), (156, 132965), (174, 119210), (182, 113970), (195, 106372), (203, 102180), (210, 98774), (260, 79779), (262, 79170), (273, 75980), (290, 71526), (348, 59605), (364, 56985), (377, 55020), (390, 53186), (393, 52780), (406, 51090), (420, 49387), (435, 47684), (455, 45588), (524, 39585), (546, 37990), (580, 35763), (609, 34060), (655, 31668), (754, 27510), (780, 26593), (786, 26390), (812, 25545), (870, 23842), (910, 22794), (917, 22620), (1015, 20436), (1092, 18995), (1131, 18340), (1218, 17030), (1310, 15834), (1365, 15196), (1508, 13755), (1572, 13195), (1703, 12180), (1740, 11921), (1820, 11397), (1834, 11310), (1885, 11004), (1965, 10556), (2030, 10218), (2262, 9170), (2436, 8515), (2620, 7917), (2639, 7860), (2730, 7598), (2751, 7540), (3045, 6812), (3406, 6090), (3668, 5655), (3770, 5502), (3799, 5460), (3930, 5278), (4060, 5109), (4524, 4585)]