213972520

素因数分解:

$2^3\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{4789}}^1$

素因数の和:5917

約数の個数: 32

約数和(自身を含む): 481969800

約数和(自身を除く): 267997280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1117, 2234, 4468, 4789, 5585, 8936, 9578, 11170, 19156, 22340, 23945, 38312, 44680, 47890, 95780, 191560, 5349313, 10698626, 21397252, 26746565, 42794504, 53493130, 106986260, 213972520]

約数ペア:

[(1, 213972520), (2, 106986260), (4, 53493130), (5, 42794504), (8, 26746565), (10, 21397252), (20, 10698626), (40, 5349313), (1117, 191560), (2234, 95780), (4468, 47890), (4789, 44680), (5585, 38312), (8936, 23945), (9578, 22340), (11170, 19156)]