20888913720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2089}}^1\times {\mathrm{3623}}^1$

素因数の和:5749

約数の個数: 128

約数和(自身を含む): 65440742400

約数和(自身を除く): 44551828680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2089, 2760, 3623, 4178, 6267, 7246, 8356, 10445, 10869, 12534, 14492, 16712, 18115, 20890, 21738, 25068, 28984, 31335, 36230, 41780, 43476, 48047, 50136, 54345, 62670, 72460, 83329, 83560, 86952, 96094, 108690, 125340, 144141, 144920, 166658, 192188, 217380, 240235, 249987, 250680, 288282, 333316, 384376, 416645, 434760, 480470, 499974, 576564, 666632, 720705, 833290, 960940, 999948, 1153128, 1249935, 1441410, 1666580, 1921880, 1999896, 2499870, 2882820, 3333160, 4999740, 5765640, 7568447, 9999480, 15136894, 22705341, 30273788, 37842235, 45410682, 60547576, 75684470, 90821364, 113526705, 151368940, 174074281, 181642728, 227053410, 302737880, 348148562, 454106820, 522222843, 696297124, 870371405, 908213640, 1044445686, 1392594248, 1740742810, 2088891372, 2611114215, 3481485620, 4177782744, 5222228430, 6962971240, 10444456860, 20888913720]

約数ペア:

[(1, 20888913720), (2, 10444456860), (3, 6962971240), (4, 5222228430), (5, 4177782744), (6, 3481485620), (8, 2611114215), (10, 2088891372), (12, 1740742810), (15, 1392594248), (20, 1044445686), (23, 908213640), (24, 870371405), (30, 696297124), (40, 522222843), (46, 454106820), (60, 348148562), (69, 302737880), (92, 227053410), (115, 181642728), (120, 174074281), (138, 151368940), (184, 113526705), (230, 90821364), (276, 75684470), (345, 60547576), (460, 45410682), (552, 37842235), (690, 30273788), (920, 22705341), (1380, 15136894), (2089, 9999480), (2760, 7568447), (3623, 5765640), (4178, 4999740), (6267, 3333160), (7246, 2882820), (8356, 2499870), (10445, 1999896), (10869, 1921880), (12534, 1666580), (14492, 1441410), (16712, 1249935), (18115, 1153128), (20890, 999948), (21738, 960940), (25068, 833290), (28984, 720705), (31335, 666632), (36230, 576564), (41780, 499974), (43476, 480470), (48047, 434760), (50136, 416645), (54345, 384376), (62670, 333316), (72460, 288282), (83329, 250680), (83560, 249987), (86952, 240235), (96094, 217380), (108690, 192188), (125340, 166658), (144141, 144920)]