20706730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 41607720

約数和(自身を除く): 20900990

約数列:

[1, 2, 5, 10, 11, 22, 55, 109, 110, 121, 157, 218, 242, 314, 545, 605, 785, 1090, 1199, 1210, 1570, 1727, 2398, 3454, 5995, 8635, 11990, 13189, 17113, 17270, 18997, 26378, 34226, 37994, 65945, 85565, 94985, 131890, 171130, 188243, 189970, 376486, 941215, 1882430, 2070673, 4141346, 10353365, 20706730]

約数ペア:

[(1, 20706730), (2, 10353365), (5, 4141346), (10, 2070673), (11, 1882430), (22, 941215), (55, 376486), (109, 189970), (110, 188243), (121, 171130), (157, 131890), (218, 94985), (242, 85565), (314, 65945), (545, 37994), (605, 34226), (785, 26378), (1090, 18997), (1199, 17270), (1210, 17113), (1570, 13189), (1727, 11990), (2398, 8635), (3454, 5995)]