20779488

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{3137}}^1$

素因数の和:3176

約数の個数: 72

約数和(自身を含む): 61680528

約数和(自身を除く): 40901040

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 138, 144, 184, 207, 276, 288, 368, 414, 552, 736, 828, 1104, 1656, 2208, 3137, 3312, 6274, 6624, 9411, 12548, 18822, 25096, 28233, 37644, 50192, 56466, 72151, 75288, 100384, 112932, 144302, 150576, 216453, 225864, 288604, 301152, 432906, 451728, 577208, 649359, 865812, 903456, 1154416, 1298718, 1731624, 2308832, 2597436, 3463248, 5194872, 6926496, 10389744, 20779488]

約数ペア:

[(1, 20779488), (2, 10389744), (3, 6926496), (4, 5194872), (6, 3463248), (8, 2597436), (9, 2308832), (12, 1731624), (16, 1298718), (18, 1154416), (23, 903456), (24, 865812), (32, 649359), (36, 577208), (46, 451728), (48, 432906), (69, 301152), (72, 288604), (92, 225864), (96, 216453), (138, 150576), (144, 144302), (184, 112932), (207, 100384), (276, 75288), (288, 72151), (368, 56466), (414, 50192), (552, 37644), (736, 28233), (828, 25096), (1104, 18822), (1656, 12548), (2208, 9411), (3137, 6624), (3312, 6274)]