31169780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 68901840

約数和(自身を除く): 37732060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 881, 1220, 1762, 1769, 3524, 3538, 4405, 7076, 8810, 8845, 17620, 17690, 25549, 35380, 51098, 53741, 102196, 107482, 127745, 214964, 255490, 268705, 510980, 537410, 1074820, 1558489, 3116978, 6233956, 7792445, 15584890, 31169780]

約数ペア:

[(1, 31169780), (2, 15584890), (4, 7792445), (5, 6233956), (10, 3116978), (20, 1558489), (29, 1074820), (58, 537410), (61, 510980), (116, 268705), (122, 255490), (145, 214964), (244, 127745), (290, 107482), (305, 102196), (580, 53741), (610, 51098), (881, 35380), (1220, 25549), (1762, 17690), (1769, 17620), (3524, 8845), (3538, 8810), (4405, 7076)]