20672288

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 51932160

約数和(自身を除く): 31259872

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 224, 229, 248, 364, 403, 416, 434, 458, 496, 728, 806, 868, 916, 992, 1456, 1603, 1612, 1736, 1832, 2821, 2912, 2977, 3206, 3224, 3472, 3664, 5642, 5954, 6412, 6448, 6944, 7099, 7328, 11284, 11908, 12824, 12896, 14198, 20839, 22568, 23816, 25648, 28396, 41678, 45136, 47632, 49693, 51296, 56792, 83356, 90272, 92287, 95264, 99386, 113584, 166712, 184574, 198772, 227168, 333424, 369148, 397544, 646009, 666848, 738296, 795088, 1292018, 1476592, 1590176, 2584036, 2953184, 5168072, 10336144, 20672288]

約数ペア:

[(1, 20672288), (2, 10336144), (4, 5168072), (7, 2953184), (8, 2584036), (13, 1590176), (14, 1476592), (16, 1292018), (26, 795088), (28, 738296), (31, 666848), (32, 646009), (52, 397544), (56, 369148), (62, 333424), (91, 227168), (104, 198772), (112, 184574), (124, 166712), (182, 113584), (208, 99386), (217, 95264), (224, 92287), (229, 90272), (248, 83356), (364, 56792), (403, 51296), (416, 49693), (434, 47632), (458, 45136), (496, 41678), (728, 28396), (806, 25648), (868, 23816), (916, 22568), (992, 20839), (1456, 14198), (1603, 12896), (1612, 12824), (1736, 11908), (1832, 11284), (2821, 7328), (2912, 7099), (2977, 6944), (3206, 6448), (3224, 6412), (3472, 5954), (3664, 5642)]