28876640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13883}}^1$

素因数の和:13911

約数の個数: 48

約数和(自身を含む): 73474128

約数和(自身を除く): 44597488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13883, 27766, 55532, 69415, 111064, 138830, 180479, 222128, 277660, 360958, 444256, 555320, 721916, 902395, 1110640, 1443832, 1804790, 2221280, 2887664, 3609580, 5775328, 7219160, 14438320, 28876640]

約数ペア:

[(1, 28876640), (2, 14438320), (4, 7219160), (5, 5775328), (8, 3609580), (10, 2887664), (13, 2221280), (16, 1804790), (20, 1443832), (26, 1110640), (32, 902395), (40, 721916), (52, 555320), (65, 444256), (80, 360958), (104, 277660), (130, 222128), (160, 180479), (208, 138830), (260, 111064), (416, 69415), (520, 55532), (1040, 27766), (2080, 13883)]