20363440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13397}}^1$

素因数の和:13429

約数の個数: 40

約数和(自身を含む): 49840560

約数和(自身を除く): 29477120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13397, 26794, 53588, 66985, 107176, 133970, 214352, 254543, 267940, 509086, 535880, 1018172, 1071760, 1272715, 2036344, 2545430, 4072688, 5090860, 10181720, 20363440]

約数ペア:

[(1, 20363440), (2, 10181720), (4, 5090860), (5, 4072688), (8, 2545430), (10, 2036344), (16, 1272715), (19, 1071760), (20, 1018172), (38, 535880), (40, 509086), (76, 267940), (80, 254543), (95, 214352), (152, 133970), (190, 107176), (304, 66985), (380, 53588), (760, 26794), (1520, 13397)]