687660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 1964256

約数和(自身を除く): 1276596

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 157, 219, 292, 314, 365, 438, 471, 628, 730, 785, 876, 942, 1095, 1460, 1570, 1884, 2190, 2355, 3140, 4380, 4710, 9420, 11461, 22922, 34383, 45844, 57305, 68766, 114610, 137532, 171915, 229220, 343830, 687660]

約数ペア:

[(1, 687660), (2, 343830), (3, 229220), (4, 171915), (5, 137532), (6, 114610), (10, 68766), (12, 57305), (15, 45844), (20, 34383), (30, 22922), (60, 11461), (73, 9420), (146, 4710), (157, 4380), (219, 3140), (292, 2355), (314, 2190), (365, 1884), (438, 1570), (471, 1460), (628, 1095), (730, 942), (785, 876)]