28127620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1301}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 62995968

約数和(自身を除く): 34868348

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 1301, 2162, 2602, 4324, 5204, 5405, 6505, 10810, 13010, 21620, 26020, 29923, 59846, 61147, 119692, 122294, 149615, 244588, 299230, 305735, 598460, 611470, 1222940, 1406381, 2812762, 5625524, 7031905, 14063810, 28127620]

約数ペア:

[(1, 28127620), (2, 14063810), (4, 7031905), (5, 5625524), (10, 2812762), (20, 1406381), (23, 1222940), (46, 611470), (47, 598460), (92, 305735), (94, 299230), (115, 244588), (188, 149615), (230, 122294), (235, 119692), (460, 61147), (470, 59846), (940, 29923), (1081, 26020), (1301, 21620), (2162, 13010), (2602, 10810), (4324, 6505), (5204, 5405)]