20395360

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6709}}^1$

素因数の和:6743

約数の個数: 48

約数和(自身を含む): 50727600

約数和(自身を除く): 30332240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6709, 13418, 26836, 33545, 53672, 67090, 107344, 127471, 134180, 214688, 254942, 268360, 509884, 536720, 637355, 1019768, 1073440, 1274710, 2039536, 2549420, 4079072, 5098840, 10197680, 20395360]

約数ペア:

[(1, 20395360), (2, 10197680), (4, 5098840), (5, 4079072), (8, 2549420), (10, 2039536), (16, 1274710), (19, 1073440), (20, 1019768), (32, 637355), (38, 536720), (40, 509884), (76, 268360), (80, 254942), (95, 214688), (152, 134180), (160, 127471), (190, 107344), (304, 67090), (380, 53672), (608, 33545), (760, 26836), (1520, 13418), (3040, 6709)]