31812378

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 71807232

約数和(自身を除く): 39994854

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 73, 74, 78, 111, 146, 151, 219, 222, 302, 438, 453, 481, 906, 949, 962, 1443, 1898, 1963, 2701, 2847, 2886, 3926, 5402, 5587, 5694, 5889, 8103, 11023, 11174, 11778, 16206, 16761, 22046, 33069, 33522, 35113, 66138, 70226, 72631, 105339, 143299, 145262, 210678, 217893, 286598, 407851, 429897, 435786, 815702, 859794, 1223553, 2447106, 5302063, 10604126, 15906189, 31812378]

約数ペア:

[(1, 31812378), (2, 15906189), (3, 10604126), (6, 5302063), (13, 2447106), (26, 1223553), (37, 859794), (39, 815702), (73, 435786), (74, 429897), (78, 407851), (111, 286598), (146, 217893), (151, 210678), (219, 145262), (222, 143299), (302, 105339), (438, 72631), (453, 70226), (481, 66138), (906, 35113), (949, 33522), (962, 33069), (1443, 22046), (1898, 16761), (1963, 16206), (2701, 11778), (2847, 11174), (2886, 11023), (3926, 8103), (5402, 5889), (5587, 5694)]