208131760

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 495834336

約数和(自身を除く): 287702576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 157, 227, 292, 314, 365, 454, 584, 628, 730, 785, 908, 1135, 1168, 1256, 1460, 1570, 1816, 2270, 2512, 2920, 3140, 3632, 4540, 5840, 6280, 9080, 11461, 12560, 16571, 18160, 22922, 33142, 35639, 45844, 57305, 66284, 71278, 82855, 91688, 114610, 132568, 142556, 165710, 178195, 183376, 229220, 265136, 285112, 331420, 356390, 458440, 570224, 662840, 712780, 916880, 1325680, 1425560, 2601647, 2851120, 5203294, 10406588, 13008235, 20813176, 26016470, 41626352, 52032940, 104065880, 208131760]

約数ペア:

[(1, 208131760), (2, 104065880), (4, 52032940), (5, 41626352), (8, 26016470), (10, 20813176), (16, 13008235), (20, 10406588), (40, 5203294), (73, 2851120), (80, 2601647), (146, 1425560), (157, 1325680), (227, 916880), (292, 712780), (314, 662840), (365, 570224), (454, 458440), (584, 356390), (628, 331420), (730, 285112), (785, 265136), (908, 229220), (1135, 183376), (1168, 178195), (1256, 165710), (1460, 142556), (1570, 132568), (1816, 114610), (2270, 91688), (2512, 82855), (2920, 71278), (3140, 66284), (3632, 57305), (4540, 45844), (5840, 35639), (6280, 33142), (9080, 22922), (11461, 18160), (12560, 16571)]