20138040018

素因数分解:

$2^1\times 3^4\times {\mathrm{313}}^1\times {\mathrm{397153}}^1$

素因数の和:397480

約数の個数: 40

約数和(自身を含む): 45268407228

約数和(自身を除く): 25130367210

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 313, 626, 939, 1878, 2817, 5634, 8451, 16902, 25353, 50706, 397153, 794306, 1191459, 2382918, 3574377, 7148754, 10723131, 21446262, 32169393, 64338786, 124308889, 248617778, 372926667, 745853334, 1118780001, 2237560002, 3356340003, 6712680006, 10069020009, 20138040018]

約数ペア:

[(1, 20138040018), (2, 10069020009), (3, 6712680006), (6, 3356340003), (9, 2237560002), (18, 1118780001), (27, 745853334), (54, 372926667), (81, 248617778), (162, 124308889), (313, 64338786), (626, 32169393), (939, 21446262), (1878, 10723131), (2817, 7148754), (5634, 3574377), (8451, 2382918), (16902, 1191459), (25353, 794306), (50706, 397153)]